APA (7th ed.) Citation

Thomas, W. S. Trails and Tramps in Alaska and Newfoundland.

Chicago Style (17th ed.) Citation

Thomas, William S. Trails and Tramps in Alaska and Newfoundland.

MLA (9th ed.) Citation

Thomas, William S. Trails and Tramps in Alaska and Newfoundland.

Warning: These citations may not always be 100% accurate.