@book{81973,
	author = {Fogal, W.H. and IUFRO Cone and Seed Insects Working Party Conference},
	title = {Seed counts and cone insect foraging damage in relation to cone-collection date and stand type in white spruce},
	note = {Sobretiro de: IUFRO Cone and Seed Insects Working Party Conference (3 : 1988 : Victoria Canada) pp. 161-166}
}