एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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