@book{ec86ec1cc7b042e7973241b23e97c219,
title = "De opzet en bouw van kinderboerderijen",
keywords = "onderwijs, openluchtrecreatie, recreatie in de stad, speelterreinen, kinderen, zuigelingen, landbouw, schoolboerderijen, education, outdoor recreation, urban recreation, playgrounds, children, infants, agriculture, school farms",
author = "J.A.M. Mertens",
year = "1976",
language = "Nederlands",
series = "Publikatie / Instituut voor mechanisatie, arbeid en gebouwen",
publisher = "IMAG",
number = "no. 65",
address = "Netherlands",
}