Polak, M. (2007). Warman's bottles field guide: Values and identification (2nd ed.). Krause Publications.
Cita Chicago (17th ed.)Polak, Michael. Warman's Bottles Field Guide: Values and Identification. 2nd ed. Lola, WI: Krause Publications, 2007.
Cita MLA (9th ed.)Polak, Michael. Warman's Bottles Field Guide: Values and Identification. 2nd ed. Krause Publications, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.