APA (7th ed.) Citation

Heason, H. (1961). Frontiers of understanding. Ritter Press.

Chicago Style (17th ed.) Citation

Heason, H.B. Frontiers of Understanding. [Nottingham, England]: Ritter Press, 1961.

MLA (9th ed.) Citation

Heason, H.B. Frontiers of Understanding. Ritter Press, 1961.

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