APA (7th ed.) Citation

Koelle, H. H. (1996). Lunar development programs for the 21st century three initial options.

Chicago Style (17th ed.) Citation

Koelle, Heinz Hermann. Lunar Development Programs for the 21st Century Three Initial Options. Berlin, 1996.

MLA (9th ed.) Citation

Koelle, Heinz Hermann. Lunar Development Programs for the 21st Century Three Initial Options. 1996.

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