APA (7e ed.) Bronvermelding

University of Illinois (Urbana-Champaign campus). Elementary-School Science Project & University of Illinois (Urbana-Champaign campus). Elementary-School Science Project. (1962). Astronomy (Rev. ed.). University of Illinois, Elementary School Science Project.

Chicago (17e ed.) Bronvermelding

University of Illinois (Urbana-Champaign campus). Elementary-School Science Project en University of Illinois (Urbana-Champaign campus). Elementary-School Science Project. Astronomy. Rev. ed. Urbana, Ill.: University of Illinois, Elementary School Science Project, 1962.

MLA (8e ed.) Bronvermelding

University of Illinois (Urbana-Champaign campus). Elementary-School Science Project en University of Illinois (Urbana-Champaign campus). Elementary-School Science Project. Astronomy. Rev. ed. University of Illinois, Elementary School Science Project, 1962.