APA (7e ed.) Bronvermelding

Allal, M., Edmonds, G. A., & Bhalla, A. S. (1977). Manual on the planning of labour-intensive road construction. International Labour Office.

Chicago (17e ed.) Bronvermelding

Allal, Moise, G. A. Edmonds, en A. S. Bhalla. Manual on the Planning of Labour-intensive Road Construction. Geneva: International Labour Office, 1977.

MLA (9e ed.) Bronvermelding

Allal, Moise, et al. Manual on the Planning of Labour-intensive Road Construction. International Labour Office, 1977.