Khanna, D. R.

A text book of sound Khanna, D. R. 1964 A text book of Sound Khanna, D . R. Year not listed A textbook of sound Khanna, D. R. 1964 A textbook of sound Khanna, D. R. 1962 A textbook of sound Khanna D. R Year not listed A textbook of sound Khanna, D. R. 1964 A textbook of sound Khanna, D. R. 1962 A Textbook of sound for B.A.B.Sc. (PassHons)students of universities Khanna, D. R. 1964 A textbook of sound with theory of oscillations and waves Khanna, D.R. 1989 Advanced embryology Khanna, D. R. 2004 Animal distribution Khanna, D. R. Year not listed ANIMAL DISTRIBUTION Khanna D.R. Year not listed Aquatic Biodiversity in India Author not listed Year not listed Biology of helminthes Khanna, D. R. 2004 Biology of Helminthes Khanna, D R 2004 Biology of helminthes Khanna, D. R. 1970 Biology of Mollusca Khanna, D R 2004 Biology of Protozoa Khanna, D. R. 2004 biology of Protozoa Khanna, D, R. 2004 Biology of reptiles Khanna D.R. 2004