APA (7th ed.) Citation

Simpson, K. (1986). Fertilizers and manures. Longman.

Chicago Style (17th ed.) Citation

Simpson, Ken. Fertilizers and Manures. London [u.a.]: Longman, 1986.

MLA (9th ed.) Citation

Simpson, Ken. Fertilizers and Manures. Longman, 1986.

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