APA (7th ed.) Citation

Howard, J. (2014). Sex on earth: A celebration of animal reproduction. Sigma.

Chicago Style (17th ed.) Citation

Howard, Jules. Sex on Earth: A Celebration of Animal Reproduction. London: Sigma, 2014.

MLA (9th ed.) Citation

Howard, Jules. Sex on Earth: A Celebration of Animal Reproduction. Sigma, 2014.

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