@book{7412,
	author = {Hopkins, A. D.},
	title = {Some of the principal insect enemies of coniferous forests in the United States.},
	year = {1903.},
	address = {Washington,},
	note = {In: United States, Dept of agriculture.  Yearbook, 1902, p. 265-282.  illus., pl. xxviii-xxix. 23 cm.  Washington, 1903.},
	url = {http://hdl.loc.gov/loc.gdc/scd0001.00028139196}
}