APA (7th ed.) Citation

Incorporated, G. (1975). Encyclopedia International: V.20.: INDEX. Grolier Inc.

Chicago Style (17th ed.) Citation

Incorporated, Grolier. Encyclopedia International: V.20.: INDEX. Grolier Inc, 1975.

MLA (8th ed.) Citation

Incorporated, Grolier. Encyclopedia International: V.20.: INDEX. Grolier Inc, 1975.

Warning: These citations may not always be 100% accurate.