APA استشهاد

Del Potro, R., & Hürlimann, M. (2009). A comparison of different indirect techniques to evaluate volcanic intact rock strength.

استشهاد بنمط شيكاغو

Del Potro, Rodrigo, و Marcel Hürlimann. A Comparison of Different Indirect Techniques to Evaluate Volcanic Intact Rock Strength. 2009.

MLA استشهاد

Del Potro, Rodrigo, و Marcel Hürlimann. A Comparison of Different Indirect Techniques to Evaluate Volcanic Intact Rock Strength. 2009.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.