APA

BERGH L. V. D., . (2009). Why peace worked. Maputo: .

Chicago

BERGH Lucia Van Den, . 2009. Why peace worked. Maputo: .

Harvard

BERGH L. V. D., . (2009). Why peace worked. Maputo: .

MLA

BERGH Lucia Van Den, . Why peace worked. Maputo: . 2009.