توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Heck, R. J., Tiessen, H., Santos, M. C., Salcedo, I. H., & Alves, R. J. T. (2002, March). Chemical changes in argisols under irrigated grape production in the central São Francisco river valley, Brazil. Revista Brasileira de Ciência do Solo.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Heck, R. J., H. Tiessen, M. C. Santos, I. H. Salcedo, و R. J. T. Alves. "Chemical Changes in Argisols Under Irrigated Grape Production in the Central São Francisco River Valley, Brazil." Revista Brasileira De Ciência Do Solo Mar. 2002.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Heck, R. J., et al. "Chemical Changes in Argisols Under Irrigated Grape Production in the Central São Francisco River Valley, Brazil." Revista Brasileira De Ciência Do Solo, Mar. 2002.