APA (7th ed.) Citation

Assel, R. A., & Ratkos, J. M. (1991). A computer tutorial and animation of the normal ice cycle of the laurentian Great Lakes of North America for 1960-1979. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Great Lakes Environmental Research Laboratory.

Chicago Style (17th ed.) Citation

Assel, Raymond A., and James M. Ratkos. A Computer Tutorial and Animation of the Normal Ice Cycle of the Laurentian Great Lakes of North America for 1960-1979. Ann Arbor, MI: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Great Lakes Environmental Research Laboratory, 1991.

MLA (9th ed.) Citation

Assel, Raymond A., and James M. Ratkos. A Computer Tutorial and Animation of the Normal Ice Cycle of the Laurentian Great Lakes of North America for 1960-1979. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Great Lakes Environmental Research Laboratory, 1991.

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