APA (7th ed.) Citation

Speyer, W. (1929). Der Apfelblattsauger: Psylla mali Schmidberger. Springer.

Chicago Style (17th ed.) Citation

Speyer, Walter. Der Apfelblattsauger: Psylla Mali Schmidberger. Berlin: Springer, 1929.

MLA (9th ed.) Citation

Speyer, Walter. Der Apfelblattsauger: Psylla Mali Schmidberger. Springer, 1929.

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