Dyfyniad APA

Ossenbach, C., & Jenny, R. (2019). Rudolf Schlechter's South-American orchids I. Historical and bibliographical background.

Dyfyniad Arddull Chicago

Ossenbach, Carlos, y Rudolf Jenny. Rudolf Schlechter's South-American Orchids I. Historical and Bibliographical Background. 2019.

Dyfyniad MLA

Ossenbach, Carlos, y Rudolf Jenny. Rudolf Schlechter's South-American Orchids I. Historical and Bibliographical Background. 2019.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.