@booklet {5436,
	title = {BARKSDALE, J.D. 1937. The Shonkin Sag laccolith. American Journal of Science, 33: 321-59.},
	year = {1937},
	note = {BARKSDALE, J.D. 1937. The Shonkin Sag laccolith. American Journal of Science, 33: 321-59.}
}
