APA
International Union of Public Transport. International Commission for the Study of Motorbuses, . (1977). Recommendations for the standardisation of motorbuses. Bryssel: International Union of Public Transport. International Commission for the Study of Motorbuses.
Chicago
International Union of Public Transport. International Commission for the Study of Motorbuses, . 1977. Recommendations for the standardisation of motorbuses. Bryssel: International Union of Public Transport. International Commission for the Study of Motorbuses.
Harvard
International Union of Public Transport. International Commission for the Study of Motorbuses, . (1977). Recommendations for the standardisation of motorbuses. Bryssel: International Union of Public Transport. International Commission for the Study of Motorbuses.
MLA
International Union of Public Transport. International Commission for the Study of Motorbuses, . Recommendations for the standardisation of motorbuses. Bryssel: International Union of Public Transport. International Commission for the Study of Motorbuses. 1977.