APA (7th ed.) Citation

Gregorietti, G., Steingraber, E., & Lawrence, H. (1973). Jewelry through the ages. Inglaterra : Hamlyn Publishing Group Limited.

Chicago Style (17th ed.) Citation

Gregorietti, Guido, Erich Steingraber, and Helen Lawrence. Jewelry Through the Ages. Inglaterra : Hamlyn Publishing Group Limited, 1973.

MLA (8th ed.) Citation

Gregorietti, Guido, et al. Jewelry Through the Ages. Inglaterra : Hamlyn Publishing Group Limited, 1973.