APA

Huffman J. E., Klockars J., Keeler S. P. & Fried B. (20091117). Histopathological effects of the intramolluscan stages of Zygocotyle lunata, Echinostoma trivolvis, and Ribeiroia ondatrae on Helisoma trivolvis and observations on keratin in the trematode larvae. : Parasitology research.

Chicago

Huffman Jane E, Klockars Jennifer, Keeler Shamus P and Fried Bernard. 20091117. Histopathological effects of the intramolluscan stages of Zygocotyle lunata, Echinostoma trivolvis, and Ribeiroia ondatrae on Helisoma trivolvis and observations on keratin in the trematode larvae. : Parasitology research.

Harvard

Huffman J. E., Klockars J., Keeler S. P. and Fried B. (20091117). Histopathological effects of the intramolluscan stages of Zygocotyle lunata, Echinostoma trivolvis, and Ribeiroia ondatrae on Helisoma trivolvis and observations on keratin in the trematode larvae. : Parasitology research.

MLA

Huffman Jane E, Klockars Jennifer, Keeler Shamus P and Fried Bernard. Histopathological effects of the intramolluscan stages of Zygocotyle lunata, Echinostoma trivolvis, and Ribeiroia ondatrae on Helisoma trivolvis and observations on keratin in the trematode larvae. : Parasitology research. 20091117.