Verslagboek Nationale Ecologie-Conferentie, 8 en 9 februari 1975, Rotterdam.
Contributors: Humanistisch Verbond (Netherlands)
Publisher: Humanistisch Verbond
Published: 1975
Place of publication: [Utrecht]
Language: dut
Number of pages: 160
Subjects: Human ecology -- Congresses
Notes: Bibliography: p. 160.