APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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