Citazione Stile APA (7a Edizione)

Hedrick, T. E., Bickman, L., & Rog, D. J. (1993). Applied research design: A practical guide. Sage Publications.

Citazione stile Chigago Style (17a edizione)

Hedrick, Terry E., Leonard Bickman, e Debra J. Rog. Applied Research Design: A Practical Guide. Newbury Park: Sage Publications, 1993.

Citatione MLA (8a ed.)

Hedrick, Terry E., et al. Applied Research Design: A Practical Guide. Sage Publications, 1993.