APA (7th ed.) Citation

Isselstein, K. H. (1965). Ancient cataclysms which changed earth's surface. Health Research.

Chicago Style (17th ed.) Citation

Isselstein, Karl H. Ancient Cataclysms Which Changed Earth's Surface. Mokelumne Hill, Calif.: Health Research, 1965.

MLA (8th ed.) Citation

Isselstein, Karl H. Ancient Cataclysms Which Changed Earth's Surface. Health Research, 1965.

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