Cita APA (7th ed.)
Haan, H. R. M. d. (1920). Contribution to the knowledge of the morphological value and the phylogeny of the ovule and its integuments.
Cita Chicago (17th ed.)
Haan, Henri Rudolph Mari de. Contribution to the Knowledge of the Morphological Value and the Phylogeny of the Ovule and Its Integuments. Groningen, 1920.
Cita MLA (9th ed.)
Haan, Henri Rudolph Mari de. Contribution to the Knowledge of the Morphological Value and the Phylogeny of the Ovule and Its Integuments. 1920.
Atenció: Aquestes cites poden no estar 100% correctes.