APA (7th ed.) Citation

Gübelin, E. J. (1952). Edelsteine. Hallwag.

Chicago Style (17th ed.) Citation

Gübelin, Eduard J. Edelsteine. Bern [u.a.]: Hallwag, 1952.

MLA (9th ed.) Citation

Gübelin, Eduard J. Edelsteine. Hallwag, 1952.

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