APA (7th ed.) Citation

Angell, N. (1932). The unseen assassins / by N. Angell. Hamilton.

Chicago Style (17th ed.) Citation

Angell, N. The Unseen Assassins / by N. Angell. Hamilton, 1932.

MLA (9th ed.) Citation

Angell, N. The Unseen Assassins / by N. Angell. Hamilton, 1932.

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