Vashishta, P. C., & Vashishta, P. C. ;. S. (1976). Botany for Degree Students: Gymnosperms. S. Chand Publishing.
Cita Chicago (17th ed.)Vashishta, P. C., i P. C. ; Sinha Vashishta. Botany for Degree Students: Gymnosperms. New Delhi: S. Chand Publishing, 1976.
Cita MLA (9th ed.)Vashishta, P. C., i P. C. ; Sinha Vashishta. Botany for Degree Students: Gymnosperms. S. Chand Publishing, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.