APA (7e ed.) Bronvermelding

Hartman, J., & König, W. Informal small business in rural areas of developing countries. University of Götingen.

Chicago (17e ed.) Bronvermelding

Hartman, Jög, en Wolfgang König. Informal Small Business in Rural Areas of Developing Countries. Göttingen, Federal Republic of Germany: University of Götingen.

MLA (9e ed.) Bronvermelding

Hartman, Jög, en Wolfgang König. Informal Small Business in Rural Areas of Developing Countries. University of Götingen.