APA (7th ed.) Citation

GROLIER. (1982). Index, Volume 20. Grolier Incoporated.

Chicago Style (17th ed.) Citation

GROLIER. Index, Volume 20. Grolier Incoporated, 1982.

MLA (8th ed.) Citation

GROLIER. Index, Volume 20. Grolier Incoporated, 1982.

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