Παραπομπή APA

Esau, K., Holt, R., & Winston. Biology studies: Vascular differenciation in plants.

Παραπομπή Chicago Style

Esau, Katherine, Rinehart Holt, και Winston. Biology Studies: Vascular Differenciation in Plants.

Παραπομπή MLA

Esau, Katherine, et al. Biology Studies: Vascular Differenciation in Plants.