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Earthworms :
January 1970 - March 1997 /
compiled by Jerry Rafats.

APA Citation

Rafats, J., National Agricultural Library (U.S.). (1997). Earthworms: January 1970 - March 1997. Beltsville, Md.: USDA, ARS, National Agricultural Library.

MLA Citation

Rafats, Jerry, and National Agricultural Library (U.S.). Earthworms: January 1970 - March 1997. Beltsville, Md.: USDA, ARS, National Agricultural Library, 1997.

Warning: These citations may not always be complete (especially for serials).