APA (7th ed.) Citation

Alton, K. L. (1999). The biology of Pemphigus spyrothecae galls on poplar leaves.

Chicago Style (17th ed.) Citation

Alton, Karin L. The Biology of Pemphigus Spyrothecae Galls on Poplar Leaves. 1999.

MLA (9th ed.) Citation

Alton, Karin L. The Biology of Pemphigus Spyrothecae Galls on Poplar Leaves. 1999.

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