Neagu, T. (1970). Micropaleontological and stratigraphical study of the Upper Cretaceous deposits between the upper valleys of the Buzău and Rîul Negru rivers (Eastern Carpathians). Institut géologique.
Chicago-referens (17:e uppl.)Neagu, Theodor. Micropaleontological and Stratigraphical Study of the Upper Cretaceous Deposits Between the Upper Valleys of the Buzău and Rîul Negru Rivers (Eastern Carpathians). Bucarest: Institut géologique, 1970.
MLA-referens (8:e uppl.)Neagu, Theodor. Micropaleontological and Stratigraphical Study of the Upper Cretaceous Deposits Between the Upper Valleys of the Buzău and Rîul Negru Rivers (Eastern Carpathians). Institut géologique, 1970.
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