APA (7th ed.) Citation

Wickman, B. E. (1979). Douglas-fir tussock moth handbook: How to estimate defoliation and predict tree damage.

Chicago Style (17th ed.) Citation

Wickman, Boyd E. Douglas-fir Tussock Moth Handbook: How to Estimate Defoliation and Predict Tree Damage. 1979.

MLA (9th ed.) Citation

Wickman, Boyd E. Douglas-fir Tussock Moth Handbook: How to Estimate Defoliation and Predict Tree Damage. 1979.

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