APA (7th ed.) Citation

Hlawka, E., & Sigmund, K. (2005). Leopold Schmetterer.

Chicago Style (17th ed.) Citation

Hlawka, Edmund, and Karl Sigmund. Leopold Schmetterer. 2005.

MLA (9th ed.) Citation

Hlawka, Edmund, and Karl Sigmund. Leopold Schmetterer. 2005.

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