APA-viite (7. p.)

De Vries, F. P. (1989). Simulation of ecophysiological processes of growth in several annual crops. IRRI.

Chicago-viite (17. p.)

De Vries, F.W.T. Penning. Simulation of Ecophysiological Processes of Growth in Several Annual Crops. Los Banos, [Laguna]: IRRI, 1989.

MLA-viite (9. p.)

De Vries, F.W.T. Penning. Simulation of Ecophysiological Processes of Growth in Several Annual Crops. IRRI, 1989.