APA (7th ed.) Citation

(1968). Nebulae and interstellar matter. Univ. Pr.

Chicago Style (17th ed.) Citation

Nebulae and Interstellar Matter. Chicago: Univ. Pr, 1968.

MLA (9th ed.) Citation

Nebulae and Interstellar Matter. Univ. Pr, 1968.

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