Παραπομπή APA

Hutchinson, J. (1969). Evolution and phyogency of flowering plants: Dicotyledons: Facts and theory. Academic press.

Παραπομπή Chicago Style

Hutchinson, J. Evolution and Phyogency of Flowering Plants: Dicotyledons: Facts and Theory. London: Academic press, 1969.

Παραπομπή MLA

Hutchinson, J. Evolution and Phyogency of Flowering Plants: Dicotyledons: Facts and Theory. Academic press, 1969.