Where are the examples of using page numbers in the APA referencing guide?
Page numbers are not used extensively in APA. The exceptions are:
APA requires that you insert the page reference in the in-text citation if you have used a specific bit of information (e.g. a statistic) from a work, or a quote:
Cole (2008) states that “Brain-based research has influenced the way that curriculum and teaching is conceived” (p. 23).
Poverty is defined as the “sustained periods of limited access to basic resources” (Smith, 2012, p. 13).
End-text or Reference list:
Page numbers are only used for book chapters or journal articles:
Elias, M. (1999). Social decision making and problem solving: Essential skills for interpersonal and academic success. In J. Cohen (Ed.), Educating minds and hearts: Social emotional learning and the passage into adolescence (pp. 74-94). New York, NY: Teachers College Press.
Beyer, B. K. (2008). How to teach thinking skills in social studies and history. The Social Studies, 99(5), 196-201. doi: 10.3200/TSSS.99.5.196-201
Examples can be found in the APA referencing guide in the sections on In-Text Citations (Quotes), Book Chapters, and Articles (Pages),