APA (7th ed.) Citation

Comrie, M. S. (1901). The key to the riddle / by M.S. Comrie. Nisbet.

Chicago Style (17th ed.) Citation

Comrie, M. S. The Key to the Riddle / by M.S. Comrie. Nisbet, 1901.

MLA (9th ed.) Citation

Comrie, M. S. The Key to the Riddle / by M.S. Comrie. Nisbet, 1901.

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