Gaya APA

The Grolier encyclopedia of knowledge vol.7 :. (1993). Danbury: Grolier incorporated.

Gaya Chicago

The Grolier encyclopedia of knowledge vol.7 :. . Danbury: Grolier incorporated, 1993. Textbook.

Gaya MLA

The Grolier encyclopedia of knowledge vol.7 :. . Danbury: Grolier incorporated, 1993. Textbook.

Gaya Turabian

The Grolier encyclopedia of knowledge vol.7 :. Danbury: Grolier incorporated, 1993. Textbook.