Historia religionum : handbook for the history of religions / edited by C. Jouco Bleeker and Geo Widengren. - Widengren, Geo, 1907-1996. (OLS)http://pul/name/11740; Bleeker, Claas Jouco, n. 1898. (OLS)http://pul/name/42793 (E.J. Brill, 1971)
V. 1: Religions of the present -- v. 2: Religions of the past.