Gaya APA

Soemarwoto, O., }, S, W, W, {, E, A. (1981). Environmental Education and Research in Indonesian Universities . Hong Kong: Maruzen Asia.

Gaya MLA

Soemarwoto, Otto., }, Sri, Wiwik, Wiyanti, {, Et, Al. "Environmental Education and Research in Indonesian Universities". Hong Kong: Maruzen Asia, 1981. Text.