Books from the publisher the ISBN of which begin with 978-99956-631

year of publication	ISBN	author(s)	title
1969	978-99956-631-7-9	Jennifer A. Slatnick · Robert B. Fulton	Network Flow Model Analysis of the Impact of Chlorofluorocarbon Phaseout on Acid-Grade Fluorspar (Information Circular, 9415)