Παραπομπή σε μορφή APA (7η εκδ.)

Cobeña Ruíz, G., Cárdenas Guillen, F. M., Álvarez Plúa, H., & Ramírez Aguirre, C. (2017). Effect of pruning and vine length on yield of three varieties of sweet potato.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cobeña Ruíz, Gloria, Flor María Cárdenas Guillen, Hugo Álvarez Plúa, και Carlos Ramírez Aguirre. Effect of Pruning and Vine Length on Yield of Three Varieties of Sweet Potato. 2017.

Παραπομπή σε μορφή MLA (9th εκδ.)

Cobeña Ruíz, Gloria, et al. Effect of Pruning and Vine Length on Yield of Three Varieties of Sweet Potato. 2017.