MLA

Shamsul Hayat, Aqil Ahmad, Aqil Ahmad, and Shamsul Hayat. Brassinosteroids: A Class of Plant Hormone. Springer Netherlands, 2011.

APA

Shamsul Hayat, A. Ahmad, Ahmad, A., & Hayat, S. (2011). Brassinosteroids: A Class of Plant Hormone. Springer Netherlands.

Chicago

Shamsul Hayat, Aqil Ahmad, Aqil Ahmad, and Shamsul Hayat. Brassinosteroids: A Class of Plant Hormone. : Springer Netherlands, 2011.