Elasmosaurid plesiosaurs with description of new material from california and colorado.

Elasmosaurid plesiosaurs with description of new material from california and colorado.

ग्रंथसूची विवरण
मुख्य लेखक: Berkeley Welles, Samuel Paul 1943
स्वरूप: पुस्तक
भाषा:English