APA Citation

Hansen, H., & Stelzner, F. (1981). Proktologie (1st ed. 1981.). Berlin, Heidelberg: Springer Berlin Heidelberg.

Chicago Style Citation

Hansen, H., and F. Stelzner. Proktologie. 1st ed. 1981. Berlin, Heidelberg: Springer Berlin Heidelberg, 1981.

MLA Citation

Hansen, H., and F. Stelzner. Proktologie. 1st ed. 1981. Berlin, Heidelberg: Springer Berlin Heidelberg, 1981.

Warning: These citations may not always be 100% accurate.