APA (7th ed.) Citation

Heffner, R. S., & Petersen, K. (1942). A word-index to "Des Minnesangs Frühling". Univ. of Wisconsin.

Chicago Style (17th ed.) Citation

Heffner, Roe-Merrill S., and Kathe Petersen. A Word-index to "Des Minnesangs Frühling". Madison: Univ. of Wisconsin, 1942.

MLA (9th ed.) Citation

Heffner, Roe-Merrill S., and Kathe Petersen. A Word-index to "Des Minnesangs Frühling". Univ. of Wisconsin, 1942.