توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

(1998). An act granting the Trento Telephone System Incorporated a franchise to construct, establish, install, maintain, and operate local exchange network in the municipality of Trento, Province of Agusan Del Sur. Manila Times.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

"An Act Granting the Trento Telephone System Incorporated a Franchise to Construct, Establish, Install, Maintain, and Operate Local Exchange Network in the Municipality of Trento, Province of Agusan Del Sur." Manila Times 1998.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

"An Act Granting the Trento Telephone System Incorporated a Franchise to Construct, Establish, Install, Maintain, and Operate Local Exchange Network in the Municipality of Trento, Province of Agusan Del Sur." Manila Times, 1998.