BOOKQUE

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Collection of Glass Negatives: Landscaping. Teaching Aid of L.W. Heringa
Ontario Agricultural College. Dept. of Horticulture , L. W. Heringa
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O.A.C. Correspondence Course in History of Gardens and Architecture
University of Guelph. Dept. of Extension Education , C. E. McNinch , L. W. Heringa
· 1966
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Berekening hoofdleiding bevloeiing Lewoeng uit de Banjoe-Poetih
H. Ferwerda , L.W. Heringa
· 1942