APA (7th ed.) Citation

Gellert, W. (1979). Natur (20., neubearb. Aufl.). Bibliographisches Institut.

Chicago Style (17th ed.) Citation

Gellert, Walter. Natur. 20., neubearb. Aufl. Leipzig: Bibliographisches Institut, 1979.

MLA (9th ed.) Citation

Gellert, Walter. Natur. 20., neubearb. Aufl. Bibliographisches Institut, 1979.

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