APA (7th ed.) Citation

Nicol, H. (1938). Plant growth substance: Their chemistry and applications. L. Hill limited.

Chicago Style (17th ed.) Citation

Nicol, Hugh. Plant Growth Substance: Their Chemistry and Applications. London, Eng.: L. Hill limited, 1938.

MLA (9th ed.) Citation

Nicol, Hugh. Plant Growth Substance: Their Chemistry and Applications. L. Hill limited, 1938.

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