Principles of invertebrate paleontology
Twenhofel, William H.
Principles of invertebrate paleontology - 2d ed. - New York, McGraw-Hill, 1953. - 816 p. illus. - McGraw-Hill series in geology .
"A revised and enlarged edition of Twenhofel and Shrock, Invertebrate paleontology."
Invertebrates, Fossil.
562 / TWE/PR
Principles of invertebrate paleontology - 2d ed. - New York, McGraw-Hill, 1953. - 816 p. illus. - McGraw-Hill series in geology .
"A revised and enlarged edition of Twenhofel and Shrock, Invertebrate paleontology."
Invertebrates, Fossil.
562 / TWE/PR