APA

Brechbuhl A., . (1981). Progress in motorbus standardisation. Bryssel: International commission for the study of motorbuses [UITP 44th international congress, Dublin 1981. Report 4].

Chicago

Brechbuhl A, . 1981. Progress in motorbus standardisation. Bryssel: International commission for the study of motorbuses [UITP 44th international congress, Dublin 1981. Report 4].

Harvard

Brechbuhl A., . (1981). Progress in motorbus standardisation. Bryssel: International commission for the study of motorbuses [UITP 44th international congress, Dublin 1981. Report 4].

MLA

Brechbuhl A, . Progress in motorbus standardisation. Bryssel: International commission for the study of motorbuses [UITP 44th international congress, Dublin 1981. Report 4]. 1981.