MLA

Negeri, Indonesia. Departemen Luar. Provisional Constitution of the Republic of Indonesia. Pertjetakan negara, 1950. https://collections.library.yale.edu/catalog/10115470.

APA, 6th edition

Negeri, I. D. L. (1950). Provisional constitution of the Republic of Indonesia [Constitutions, Documents]. Pertjetakan negara. https://collections.library.yale.edu/catalog/10115470.