APA (7th ed.) Citation

Gibbs, M. A. (1968). The sea-urchins. Hurst & Blackett.

Chicago Style (17th ed.) Citation

Gibbs, Mary Ann. The Sea-urchins. London: Hurst & Blackett, 1968.

MLA (8th ed.) Citation

Gibbs, Mary Ann. The Sea-urchins. Hurst & Blackett, 1968.

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