Vasishta, P. C. (1985). Botany for degree students: gymnosperms: Volume V: Gymnosperms. S. Chand & Company.
Chicago Style (17th ed.) ZitazioaVasishta, P. C. Botany for Degree Students: Gymnosperms: Volume V: Gymnosperms. New Delhi: S. Chand & Company, 1985.
MLA (9th ed.) ZitazioaVasishta, P. C. Botany for Degree Students: Gymnosperms: Volume V: Gymnosperms. S. Chand & Company, 1985.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.