APA (7e ed.) Bronvermelding

Não informado. Extension Folder. North Carolina State College of Agriculture and Engineering, Agricultural Extension Service.

Chicago (17e ed.) Bronvermelding

Não informado. Extension Folder. Raleigh, NC: North Carolina State College of Agriculture and Engineering, Agricultural Extension Service.

MLA (8e ed.) Bronvermelding

Não informado. Extension Folder. North Carolina State College of Agriculture and Engineering, Agricultural Extension Service.

Let op: Deze citaties zijn niet altijd 100% accuraat.