Chamberlain, C. J. (1986). Gymnosperms structure and evolution: With 397 figures (Indian ed.). CBS Publishers & Distributors.
Cita Chicago (17th ed.)Chamberlain, Charles Joseph. Gymnosperms Structure and Evolution: With 397 Figures. Indian ed. New Delhi: CBS Publishers & Distributors, 1986.
Cita MLA (9th ed.)Chamberlain, Charles Joseph. Gymnosperms Structure and Evolution: With 397 Figures. Indian ed. CBS Publishers & Distributors, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.