His The role of transportation in the Industrial Revolution, 1991: t.p. (Rick Szostak) Can. CIP (Szostak, Rick, 1959-)

Repko, A.F. Interdisciplinary research, process and theory, 2017: ECIP t.p. (Rick Szostak) data view (PhD; professor of economics at University of Alberta)

OCLC, Feb. 2, 2016 (hdg.: Szostak, Rick, 1959- ; Ph. D. dissertation, Northwestern University: The role of transportation in the Industrial Revolution)

University of Alberta, Faculty of Arts, viewed Feb. 2, 2016 (Rick Szostak, Ph. D.; professor of economics; PhD, Northwestern University)