APA (7e ed.) Bronvermelding

Robertson, A. M. (1977). Farm wastes handbook: Problems, properties, storage, handling and use of by-products from housing farm livestock. Scottish Farm Buildings Investigation Unit.

Chicago (17e ed.) Bronvermelding

Robertson, A. M. Farm Wastes Handbook: Problems, Properties, Storage, Handling and Use of By-products from Housing Farm Livestock. Aberdeen: Scottish Farm Buildings Investigation Unit, 1977.

MLA (9e ed.) Bronvermelding

Robertson, A. M. Farm Wastes Handbook: Problems, Properties, Storage, Handling and Use of By-products from Housing Farm Livestock. Scottish Farm Buildings Investigation Unit, 1977.