APA (7th ed.) Citation

Queffelec, H. (1960). Frontier of the unknown. Secker & Warburg.

Chicago Style (17th ed.) Citation

Queffelec, Henri. Frontier of the Unknown. Lond.: Secker & Warburg, 1960.

MLA (8th ed.) Citation

Queffelec, Henri. Frontier of the Unknown. Secker & Warburg, 1960.

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