Principles of Invertebrate Palaeontology .-Edn 2
Shrock R R & Twenhofel W H
Principles of Invertebrate Palaeontology .-Edn 2 - Edn 2 - CBS Pub, N'Delhi - pp 816; 23*15
H6:(K1)/N87/B17521
Principles of Invertebrate Palaeontology .-Edn 2 - Edn 2 - CBS Pub, N'Delhi - pp 816; 23*15
H6:(K1)/N87/B17521