APA (7th ed.) Citation

Horgan, P. (1954). Humble powers. Macmillan.

Chicago Style (17th ed.) Citation

Horgan, Paul. Humble Powers. London: Macmillan, 1954.

MLA (8th ed.) Citation

Horgan, Paul. Humble Powers. Macmillan, 1954.

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