APA način citiranja (7. izdanje)

(1968). Populations: A science unit for the primary grades (Trial ed.). Science Curriculum Improvement Study.

Čikaški stil citiranja (17. izdanje)

Populations: A Science Unit for the Primary Grades. Trial ed. Berkeley, CA: Science Curriculum Improvement Study, 1968.

MLA način citiranja (9. izdanje)

Populations: A Science Unit for the Primary Grades. Trial ed. Science Curriculum Improvement Study, 1968.