Robinson, J. M., & Barc, B. (1981). From the Cliff to Cairo. The Story of the Discoverers and the Middlemen of the Nag Hammadi Codices. Bibliothèque copte de Nag Hammadi / Section Etudes, 1, 21 - 58.
Chicago Style (17th ed.) CitationRobinson, James McConkey, and Bernard Barc. "From the Cliff to Cairo. The Story of the Discoverers and the Middlemen of the Nag Hammadi Codices." Bibliothèque Copte De Nag Hammadi / Section Etudes 1 (1981): 21 - 58.
MLA (8th ed.) CitationRobinson, James McConkey, and Bernard Barc. "From the Cliff to Cairo. The Story of the Discoverers and the Middlemen of the Nag Hammadi Codices." Bibliothèque Copte De Nag Hammadi / Section Etudes, 1, 1981, pp. 21 - 58.
Warning: These citations may not always be 100% accurate.