APA (7th ed.) Citation

Grolier. (1971). Encyclopaedia International. Grolier.

Chicago Style (17th ed.) Citation

Grolier. Encyclopaedia International. Grolier, 1971.

MLA (8th ed.) Citation

Grolier. Encyclopaedia International. Grolier, 1971.

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