APA (7th ed.) Citation

Greenstone, S., & Smith, M. (1981). Junior High Astronomy.

Chicago Style (17th ed.) Citation

Greenstone, Sid, and Murray Smith. Junior High Astronomy. 1981.

MLA (9th ed.) Citation

Greenstone, Sid, and Murray Smith. Junior High Astronomy. 1981.

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