Cita APA (7a ed.)
Unitrade Press, Chung, A., & Narbonne, R. F. The New Specialized Catalogue of Canada Post Official First Day Covers: 1997 Covering 25 years of Canada Post Official First Day Covers (Primera edición.).
Cita Chicago Style (17a ed.)
Unitrade Press, Andrew Chung, y R. F. Narbonne. The New Specialized Catalogue of Canada Post Official First Day Covers: 1997 Covering 25 Years of Canada Post Official First Day Covers. Primera edición.
Cita MLA (9a ed.)
Unitrade Press, et al. The New Specialized Catalogue of Canada Post Official First Day Covers: 1997 Covering 25 Years of Canada Post Official First Day Covers. Primera edición.
Precaución: Estas citas no son 100% exactas.