APA (7th ed.) Citation

Wilhelms, D. E. (1970). Summary of lunar stratigraphy -- telescopic observations. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Wilhelms, Don E. Summary of Lunar Stratigraphy -- Telescopic Observations. Washington: U.S. Govt. Print. Off, 1970.

MLA (9th ed.) Citation

Wilhelms, Don E. Summary of Lunar Stratigraphy -- Telescopic Observations. U.S. Govt. Print. Off, 1970.