Gaya APA

VIEWEG, F. et al (1995). ENVIROMENTAL HANDBOOK VOLUME I Introduction, Croos-sectoral Planning, Infrastructure (Cetakan I (Vol.1)). Germany: VIEWEG.

Gaya MLA

VIEWEG, FRIEDRICH. et al. "ENVIROMENTAL HANDBOOK VOLUME I Introduction, Croos-sectoral Planning, Infrastructure". Cetakan I (Vol.1) Germany: VIEWEG, 1995. Text.