توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Hanley, D. P., Schmidt, W. C., & Blake, G. M. (1975). Stand structure and successional status of two spruce-fir forests in southern Utah. Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Hanley, Donald P., Wyman C. Schmidt, و George M. Blake. Stand Structure and Successional Status of Two Spruce-fir Forests in Southern Utah. Ogden, Utah: Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Hanley, Donald P., et al. Stand Structure and Successional Status of Two Spruce-fir Forests in Southern Utah. Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975.