APA引文

Merrick, H. H. Lands and peoples. The world in color. Volume 6: Canada, the United States. New York: Grolier.

Παραπομπή Chicago Style

Merrick, Helen Hynson. Lands and Peoples. The World in Color. Volume 6: Canada, the United States. New York: Grolier.

MLA引文

Merrick, Helen Hynson. Lands and Peoples. The World in Color. Volume 6: Canada, the United States. New York: Grolier.

警告：这些引文格式不一定是100％准确.