Cohn, E., Millman, S. D., & Chew, I. (1975). Input-output analysis in public education. Ballinger Pub.
Dyfyniad Arddull ChicagoCohn, Elchanan, Stephen D. Millman, and It-Keong Chew. Input-output Analysis in Public Education. Cambridge, Mass: Ballinger Pub, 1975.
Dyfyniad MLACohn, Elchanan, et al. Input-output Analysis in Public Education. Ballinger Pub, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.