Determination of nucleopolyhedron counts and size frequency distributions by means of a Coulter transducer
By: by Mauro E. Martignoni and Paul J. Iwai.
Contributors: Iwai, Paul J.; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: U.S. Forest Service research note PNW -- 85.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Forest Service
Published: 1968
Place of publication: [Portland, Or.]
Language: eng
Number of pages: 14
Subjects: Douglas-fir tussock moth -- Virus diseases.; Douglas-fir tussock moth -- Viruses.; Biological assay.
Notes: Caption title.

"August, 1968."

Includes bibliographical references (p. 14).