APA (7th ed.) Citation

Barger, J. H., & Helrich, K. (1975). Field test with helicopter applications of Gardona against gypsy moth in Pennsylvania. Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station.

Chicago Style (17th ed.) Citation

Barger, Jack H., and Kenneth Helrich. Field Test with Helicopter Applications of Gardona Against Gypsy Moth in Pennsylvania. Upper Darby, Pa.: Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1975.

MLA (9th ed.) Citation

Barger, Jack H., and Kenneth Helrich. Field Test with Helicopter Applications of Gardona Against Gypsy Moth in Pennsylvania. Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1975.