APA引文

Hullmann, H. F. (2008). Geographica: World atlas and encyclopaedia.

Chicago Edition Citation

Hullmann, H F. Geographica: World Atlas and Encyclopaedia. Hugo's Language Books Ltd., London, 2008.

MLA引文

Hullmann, H F. Geographica: World Atlas and Encyclopaedia. 2008.

警告：這些引文格式不一定是100％准確.