Gaya APA

Whittlesey, M. (1905). Spherical Geometry and Its Applications . : CV. Spektra Anugerahabadi.

Gaya MLA

Whittlesey, Marshall. "Spherical Geometry and Its Applications". : CV. Spektra Anugerahabadi, 1905. Tadris Ilmu Pengetahuan Alam.