Lal, S. S. (1995). a textbook of practical zoology vertebrate: 7th rev. ed. Rastogi Publications.
Cita Chicago (17th ed.)Lal, S. S. A Textbook of Practical Zoology Vertebrate: 7th Rev. Ed. Meerut, India: Rastogi Publications, 1995.
Cita MLA (9th ed.)Lal, S. S. A Textbook of Practical Zoology Vertebrate: 7th Rev. Ed. Rastogi Publications, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.