Lachapelle , E. R. (1969). Field guide to snow crystals. University of washington pr.
Chicagoスタイル(17版)引用形式Lachapelle , Edward R. Field Guide to Snow Crystals. London: University of washington pr, 1969.
MLA(9版)引用形式Lachapelle , Edward R. Field Guide to Snow Crystals. University of washington pr, 1969.
警告: この引用は必ずしも正確ではありません.