by: Shankar Lal, S.K. Singh, A Kumar and Renu
by: R Krishna Murthy (Forwarded by Dr M.S. Swaminathan)
by: Chandra, S.
by: Rao, R.R.
by: J.C. Jana,Nilesh Bhowmick
by: Garg,H.P.,Gangwar, B.
by: Garg,H.P.,Saxena,P.
by: Govindasamy Kadirvel, Subhra saikat Roy , sandeep Ghatak and Vinay Kumar mishra
by: Amod Sharma, D. C. Kalia and K. K. Jha
by: K. K. Jha, Amod Sharma, Y.K Sharma and R. K. Kulshrestha
by: Kerzuhiko,Naokisakuria,Yoshio Masuda
by: O. Beccari
by: Dinesh Kumar , S.C. Gupta,S.P.S. Ahlawat
by: Manoharachary, C. Atri, N.S., T. Prameela Devi, Deeba Kamil, S. K. Singh and A.P. Singh
by: Mujeebur R. Khan,R.N. Pandey
by: Mujeebur, R. Khan
by: Dr. E. Keshamma & Dr. Sharangouda J. Patil
by: Mahadevan, A.
by: Rajamanickam
by: Sadashiv S. O., S. J Patil and Nandeshwarappa, B.P.
by: V. A Parthasarathy,Singh, S.
by: Parthasarathy, V.A.
by: Talbot, G
by: Marie C. Stopes
by: Ratna Kumar Pasala
by: S.M. Vasudeva,S.S. Bir
by: Dr. Madan Pal Singh
by: Sati, V.P. ,Dubey, S.C.
by: N.P. Singh, Mahesh Kumar, N. V. Singh, Yogeshwar Singh
by: A.K. Pandey & Yamuna Pandey
by: Arrow, G.J.
by: Arrow, G.J.
by: Arrow, G.J.
by: Maulik, S.
by: Jacoby, M.
by: Maulik, S.
by: Maulik, S.
by: Marshal, G.A.K.
by: Cameron, M.
by: Cameron, M.
by: Cameron, M.
by: Gahan, G.J.
by: Andrews, H.E.
by: Andrews, H.E.
by: Fowler, W.W.
by: B. P. Nandeshwarappa,Shanmughavel,P.
by: P.C Dihingia, C.B. Khobragade & Prasanna Kumar G.V
by: Sv Ngachan ,KP Mohapatra ,Anup Das
by: A. K. Roy,H. K. Chourasia
by: Chanda, S.C.
by: S.K. Chauhan