APA (7th ed.) Citation

Darwin, C. (1966). A monograph on the fossil Lepadidae, or, pedunculated Cirripedes of Great Britain.

Chicago Style (17th ed.) Citation

Darwin, Charles. A Monograph on the Fossil Lepadidae, or, Pedunculated Cirripedes of Great Britain. 1966.

MLA (9th ed.) Citation

Darwin, Charles. A Monograph on the Fossil Lepadidae, or, Pedunculated Cirripedes of Great Britain. 1966.

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