(1981). Lands and peoples: North America. Grolier.
芝加哥风格引文Lands and Peoples: North America. Danburry, CT: Grolier, 1981.
MLA引文Lands and Peoples: North America. Grolier, 1981.
警告:这些引文格式不一定是100%准确.
(1981). Lands and peoples: North America. Grolier.
芝加哥风格引文Lands and Peoples: North America. Danburry, CT: Grolier, 1981.
MLA引文Lands and Peoples: North America. Grolier, 1981.