APA

UITP 44th international congress D. 1. R. 4., . (1981). International commission for the study of motorbuses. Bryssel: UITP 44th international congress, Dublin 1981. Report 4.

Chicago

UITP 44th international congress Dublin 1981 Report 4, . 1981. International commission for the study of motorbuses. Bryssel: UITP 44th international congress, Dublin 1981. Report 4.

Harvard

UITP 44th international congress D. 1. R. 4., . (1981). International commission for the study of motorbuses. Bryssel: UITP 44th international congress, Dublin 1981. Report 4.

MLA

UITP 44th international congress Dublin 1981 Report 4, . International commission for the study of motorbuses. Bryssel: UITP 44th international congress, Dublin 1981. Report 4. 1981.