Anthony, K. W. (1973). Beginners Guide to Stamp Collecting. Sphere books.
Chicago Style aipamenaAnthony, Kenneth W. Beginners Guide to Stamp Collecting. London: Sphere books, 1973.
MLA aipamenaAnthony, Kenneth W. Beginners Guide to Stamp Collecting. Sphere books, 1973.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.