APA način citiranja (7. izdanje)
Brookman Stamp Company & Kaufman, L. Brookman 1994: 60 Years as the Nation's Most Accurate and Respected Guide for Retail Stamp Prices.
Čikaški stil citiranja (17. izdanje)
Brookman Stamp Company i Lewis Kaufman. Brookman 1994: 60 Years as the Nation's Most Accurate and Respected Guide for Retail Stamp Prices.
MLA način citiranja (9. izdanje)
Brookman Stamp Company i Lewis Kaufman. Brookman 1994: 60 Years as the Nation's Most Accurate and Respected Guide for Retail Stamp Prices.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.