APA (7th ed.) Citation

GROLIER ENCYCLOPEDIA .. & GROLIER. Grolier encyclopedia of knowledge 13. Grolier.

Chicago Style (17th ed.) Citation

GROLIER ENCYCLOPEDIA .. and GROLIER. Grolier Encyclopedia of Knowledge 13. Danbury: Grolier.

MLA (9th ed.) Citation

GROLIER ENCYCLOPEDIA .. and GROLIER. Grolier Encyclopedia of Knowledge 13. Grolier.

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