توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Ngo, V. M. (2001). Better use of local forages for dairy cattle in Vietnam: Improving grasses, rice straw and protein rich forages. Swedish University of Agricultural Sciences.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Ngo, Van Man. Better Use of Local Forages for Dairy Cattle in Vietnam: Improving Grasses, Rice Straw and Protein Rich Forages. Uppsala: Swedish University of Agricultural Sciences, 2001.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Ngo, Van Man. Better Use of Local Forages for Dairy Cattle in Vietnam: Improving Grasses, Rice Straw and Protein Rich Forages. Swedish University of Agricultural Sciences, 2001.