Παραπομπή APA

DITTMER,Howard.J. (1964). PHYLOGENY AND FORM IN THE PLANT KINGDOM. D.VAN NOSTRAND CO.

Παραπομπή Chicago Style

DITTMER,Howard.J. PHYLOGENY AND FORM IN THE PLANT KINGDOM. TORONTO: D.VAN NOSTRAND CO, 1964.

Παραπομπή MLA

DITTMER,Howard.J. PHYLOGENY AND FORM IN THE PLANT KINGDOM. D.VAN NOSTRAND CO, 1964.