Symposium on Peat in Horticulture, Bad Zwischenahn, 2-6 June, 1969 /
chairman, F. Penningsfeld.

APA Citation

Symposium on Peat in Horticulture, (. : Bad Zwischenahn., Penningsfeld, F. (Franz)., International Society for Horticultural Science. Section Vegetables. (1971). Symposium on Peat in Horticulture, Bad Zwischenahn, 2-6 June, 1969. The Hague: International Society for Horticultural Science.

MLA Citation

Symposium on Peat in Horticulture, (1969 : Bad Zwischenahn, Ger), F. (Franz) Penningsfeld, and International Society for Horticultural Science. Section Vegetables. Symposium On Peat In Horticulture, Bad Zwischenahn, 2-6 June, 1969. The Hague: International Society for Horticultural Science, 1971.