APA (7e ed.) Bronvermelding

Lawson, R. M. (1977). The agricultural entrepreneurship of upper-income Africans. Dept. of Economics & Commerce, University of Hull.

Chicago (17e ed.) Bronvermelding

Lawson, Rowena M. The Agricultural Entrepreneurship of Upper-income Africans. [Hull, Humberside]: Dept. of Economics & Commerce, University of Hull, 1977.

MLA (8e ed.) Bronvermelding

Lawson, Rowena M. The Agricultural Entrepreneurship of Upper-income Africans. Dept. of Economics & Commerce, University of Hull, 1977.