توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Gerendas, J., Ratcliffe, R., & Sattelmacher, B. (1990). P-31 NUCLEAR-MAGNETIC-RESONANCE EVIDENCE FOR DIFFERENCES IN INTRACELLULAR PH IN THE ROOTS OF MAIZE SEEDLINGS GROWN WITH NITRATE OR AMMONIUM.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Gerendas, J., R. Ratcliffe, و B. Sattelmacher. P-31 NUCLEAR-MAGNETIC-RESONANCE EVIDENCE FOR DIFFERENCES IN INTRACELLULAR PH IN THE ROOTS OF MAIZE SEEDLINGS GROWN WITH NITRATE OR AMMONIUM. 1990.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Gerendas, J., et al. P-31 NUCLEAR-MAGNETIC-RESONANCE EVIDENCE FOR DIFFERENCES IN INTRACELLULAR PH IN THE ROOTS OF MAIZE SEEDLINGS GROWN WITH NITRATE OR AMMONIUM. 1990.