Gaya APA

T, H, , H. et al (1981). Pllant Science Growth Development and Ultilization of Cultivated Plants . New Jersey: Prentice Hall Inc.

Gaya MLA

T, Hartmann, , Hudson. et al. "Pllant Science Growth Development and Ultilization of Cultivated Plants". New Jersey: Prentice Hall Inc, 1981. Text.