Gaya APA
Meijerink, A, M., Meynen, . (1988).
Integrated land and watershed management information system .
Enschade:
ITC.
Gaya MLA
Meijerink, Allard, M.J.., Meynen, .
"Integrated land and watershed management information system".
Enschade:
ITC,
1988.
Text.