APA Edition Citation

SIMPSON,George Gaylord.,Beck,William.S. (1953). LIFE OF THE PAST: INTRODUCTION TO PALEONTOLOGY. YALE UNIVERSITY PRESS.

Chicago Edition Citation

SIMPSON,George Gaylord.,Beck,William.S. LIFE OF THE PAST: INTRODUCTION TO PALEONTOLOGY. NEW HAVEN: YALE UNIVERSITY PRESS, 1953.

MLA Edition Citation

SIMPSON,George Gaylord.,Beck,William.S. LIFE OF THE PAST: INTRODUCTION TO PALEONTOLOGY. YALE UNIVERSITY PRESS, 1953.

Warning: These citations may not always be 100% accurate.