Gaya APA

Erling, N. (2013). NOBEL PRIZES AND NATURE'S SURPRISES . : CV. Spektra Anugerahabadi.

Gaya MLA

Erling, Norrby. "NOBEL PRIZES AND NATURE'S SURPRISES". : CV. Spektra Anugerahabadi, 2013. Tadris Ilmu Pengetahuan Alam.