APA (7th ed.) Citation

Drüll, D. (1991). Gustav Adolf Gerhard. Heidelberger Gelehrtenlexikon ; [1]: 1652 - 1802.

Chicago Style (17th ed.) Citation

Drüll, Dagmar. "Gustav Adolf Gerhard." Heidelberger Gelehrtenlexikon ; [1]: 1652 - 1802 1991.

MLA (9th ed.) Citation

Drüll, Dagmar. "Gustav Adolf Gerhard." Heidelberger Gelehrtenlexikon ; [1]: 1652 - 1802, 1991.

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