Gaya APA

Schepers, J. (1933). Geodetic and astronomical operations in the Netherlands East Indies: report to the geodetic association of the International Geodetic and Geophysical Union . Welteureden: Reproductie Bedrijf Top Dient.

Gaya MLA

Schepers, JHG. "Geodetic and astronomical operations in the Netherlands East Indies: report to the geodetic association of the International Geodetic and Geophysical Union". Welteureden: Reproductie Bedrijf Top Dient, 1933. Text.