APA (7th ed.) Citation

Sagan, C. (1970). Planetary exploration. Oregon State System of Higher Education.

Chicago Style (17th ed.) Citation

Sagan, Carl. Planetary Exploration. Eugene, Oregon: Oregon State System of Higher Education, 1970.

MLA (9th ed.) Citation

Sagan, Carl. Planetary Exploration. Oregon State System of Higher Education, 1970.

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