APA

Inc. Encyclopaedia Britannica, . (2009). Human body. chicago: Britannica illustrated science library.

Chicago

Inc. Encyclopaedia Britannica, . 2009. Human body. chicago: Britannica illustrated science library.

Harvard

Inc. Encyclopaedia Britannica, . (2009). Human body. chicago: Britannica illustrated science library.

MLA

Inc. Encyclopaedia Britannica, . Human body. chicago: Britannica illustrated science library. 2009.