APA (7th ed.) Citation

Hubbard, W., & Winter, R. F. (1988). North Atlantic mail sailings: 1840 - 75. US Philatelic Classics Soc.

Chicago Style (17th ed.) Citation

Hubbard, Walter, and Richard F. Winter. North Atlantic Mail Sailings: 1840 - 75. Canton, Ohio: US Philatelic Classics Soc, 1988.

MLA (9th ed.) Citation

Hubbard, Walter, and Richard F. Winter. North Atlantic Mail Sailings: 1840 - 75. US Philatelic Classics Soc, 1988.