Cita APA (7a ed.)

Singh, H. (1978). Embriology of gymnosperms. Gebrüder Borntraeger.

Cita Chicago Style (17a ed.)

Singh, Hardev. Embriology of Gymnosperms. Berlín: Gebrüder Borntraeger, 1978.

Cita MLA (8a ed.)

Singh, Hardev. Embriology of Gymnosperms. Gebrüder Borntraeger, 1978.