Gaya APA

al., G, D, S, E. (1970). The home library encyclopedia topically arranged and indexed : Understanding the universe ( volume 1) . New York: Parents\' Isntitute.

Gaya MLA

al., George, D., Stoddard,, Et.. "The home library encyclopedia topically arranged and indexed : Understanding the universe ( volume 1)". New York: Parents\' Isntitute, 1970. Text.