Gaya APA

Hopkins, W, G., Huner, N, P, A. (2009). Introduction to Plant Physiology [PART 1] (4th ed.). London: John Wiley & Sons, Ltd..

Gaya MLA

Hopkins, William, G.., Huner, Norman, P., A.. "Introduction to Plant Physiology [PART 1]". 4th ed. London: John Wiley & Sons, Ltd., 2009. e-book.