APA (7th ed.) Citation

Steinmann, G. (1909). Probleme der ammoniten-phylogenie (Gattung Heterotissotia) .. [publisher not identified].

Chicago Style (17th ed.) Citation

Steinmann, G. Probleme Der Ammoniten-phylogenie (Gattung Heterotissotia) .. Bonn: [publisher not identified], 1909.

MLA (9th ed.) Citation

Steinmann, G. Probleme Der Ammoniten-phylogenie (Gattung Heterotissotia) .. [publisher not identified], 1909.

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