APA (7th ed.) Citation

Forsyth, W. S. (1961). Common British seashells / by W.S. Forsyth. Adam and Charles Black.

Chicago Style (17th ed.) Citation

Forsyth, W. S. Common British Seashells / by W.S. Forsyth. Adam and Charles Black, 1961.

MLA (9th ed.) Citation

Forsyth, W. S. Common British Seashells / by W.S. Forsyth. Adam and Charles Black, 1961.

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