एपीए उद्धरण

Frey-Wyssling, A. Submicroscopic morphology of protoplasm.

शिकागो स्टाइल उद्धरण

Frey-Wyssling, A. Submicroscopic Morphology of Protoplasm.

एमएलए उद्धरण

Frey-Wyssling, A. Submicroscopic Morphology of Protoplasm.