Cita APA (7th ed.)

Sundara Rajan, S. (1999). Introduction to pteridophyta. New Age International Publishers.

Cita Chicago (17th ed.)

Sundara Rajan, S. Introduction to Pteridophyta. New Delhi: New Age International Publishers, 1999.

Cita MLA (9th ed.)

Sundara Rajan, S. Introduction to Pteridophyta. New Age International Publishers, 1999.