APA (7th ed.) Citation

O'Neil, P. (1989). Edelsteine (4. German print.). Time-Life-Bücher.

Chicago Style (17th ed.) Citation

O'Neil, Paul. Edelsteine. 4. German print. Amsterdam: Time-Life-Bücher, 1989.

MLA (9th ed.) Citation

O'Neil, Paul. Edelsteine. 4. German print. Time-Life-Bücher, 1989.

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