Geological Implications of Impacts of Large Asteroids and Comets on the Earth. Silver, L. T. & Schultz, P. H. Geological Society of America, February, 1983. Google-Books-ID: efz87W88HawC
bibtex   
@book{silver_geological_1983,
	title = {Geological {Implications} of {Impacts} of {Large} {Asteroids} and {Comets} on the {Earth}},
	isbn = {978-0-8137-2190-3},
	language = {en},
	publisher = {Geological Society of America},
	author = {Silver, Leon Theodore and Schultz, Peter H.},
	month = feb,
	year = {1983},
	note = {Google-Books-ID: efz87W88HawC},
	keywords = {Science / General}
}

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