Text book of paleontology /
Von Zittel, Karl A.
Text book of paleontology / - 2nd ed. - 1964.
3v.1964, vi and 2 ed by Charles R Eastman, v3. Rev. by max Schlosser
Text book of paleontology / - 2nd ed. - 1964.
3v.1964, vi and 2 ed by Charles R Eastman, v3. Rev. by max Schlosser