توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Regional Conference for Africa, Luanda. (1971). Soil mechanics and foundation engineering: Proceedings. Mecânica dos solos e engenharia de fundações; actas. Laboratório de Engenharia de Angola.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Regional Conference for Africa, Luanda. Soil Mechanics and Foundation Engineering: Proceedings. Mecânica Dos Solos E Engenharia De Fundações; Actas. Luanda: Laboratório de Engenharia de Angola, 1971.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Regional Conference for Africa, Luanda. Soil Mechanics and Foundation Engineering: Proceedings. Mecânica Dos Solos E Engenharia De Fundações; Actas. Laboratório de Engenharia de Angola, 1971.