Esguerra, E. F. (1989). Specialization by collateral substitutes: Borrower-leader relations in an agricultural rice economy. Agricultural Credit Policy Council.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Esguerra, Emmanuel F. Specialization by Collateral Substitutes: Borrower-leader Relations in an Agricultural Rice Economy. Quezon City: Agricultural Credit Policy Council, 1989.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Esguerra, Emmanuel F. Specialization by Collateral Substitutes: Borrower-leader Relations in an Agricultural Rice Economy. Agricultural Credit Policy Council, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.