A source by one author: Solnit (2013) writes, “Peter Freuchen was twenty years old his first winter in the arctic” (p. 199). or It is important to note that “Peter Freuchen was twenty years old his first winter in the arctic” (Solnit, 2013, p. 199). A source by two authors: First citation: Beard and Lahey (1987) argue that studying fairy tales can lead to important insights about the psyche (p. 203). or Studying fairy tales can lead to important insights about the psyche (Beard & Lahey, 1987, p. 203). A source by three to five authors: First citation: Professional gardeners state, “Properly caring for your apple tree will ensure its longevity” (Carson, Ellis, & Singh, 1990, p.32). or Carson, Ellis, and Singh (1990) state, “Properly caring for your apple tree will ensure its longevity” (p.32). Subsequent citations: Carson et al. (1990) also note the importance of weeding around the base of the tree (p.45). or Weeding around the base of the tree is also crucial to its health (Carson et al., 1990, p.45). A source by six or more authors: They observe, “Down Syndrome entails an increased risk of many chronic diseases” (Horvath et al., 2015, p. 491). or Horvath et al. (2015) observe, “Down Syndrome entails an increased risk of many chronic diseases” (p.491). A source with no publication date: Louisa Harris (n.d.) argues, “Byatt’s approach to research is problematic” (p.11-12). or It has been argued that “Byatt’s approach to research is problematic” (Harris, n.d., p.11-12). A source by an organization (no individual author), and no page numbers: Modern programs for children with Autism follow “the best available research evidence” (National Collaborating Centre for Mental Health, 2013, para. 2). or The National Collaborating Centre for Mental Health (2013) states that modern programs for children with Autism follow “the best available research evidence” (para. 2). A source by an organization with a well-known abbreviation: First citation: It is crucial that we work towards reforming criminal justice policies (The National Association for the Advancement of Colored People [NAACP], 2018, Issues section, para. 1). Subsequent citations: Ensuring access to health care is equally important (NAACP, 2018, Issues section, para. 5). A source with an unknown author: An anonymous source claims that the area has unique gravitational properties (“Gravity in Northern Arizona,” 1960, p.7). An indirect source: Albert argued that “the importance of the Bible to Western literature cannot be measured” (as cited in Lee, 2001, p. 19).