Gaya APA
Incorporated, G. (1981).
Incyclopedia Americana 29: Wilmot Proviso To Zygote .
United States of America:
Grolier Incorporated Corporation.
Gaya MLA
Incorporated, Grolier.
"Incyclopedia Americana 29: Wilmot Proviso To Zygote".
United States of America:
Grolier Incorporated Corporation,
1981.
Text.