APA (7th ed.) Citation

Simmonds, N. W. (1981). Principles of crop improvement (1st pub., reprint. with corr.). Longman.

Chicago Style (17th ed.) Citation

Simmonds, N. W. Principles of Crop Improvement. 1st pub., reprint. with corr. London ; New York: Longman, 1981.

MLA (9th ed.) Citation

Simmonds, N. W. Principles of Crop Improvement. 1st pub., reprint. with corr. Longman, 1981.

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