International Navigation Congress Baltimore, Md. (1961). XXe Congrès International de Navigation: = Sect. 1, Inland navigation; 4, Subject Propulsion of vessels by push towing. General-Secretariat P.I.A.N.C.
Chicago-Zitierstil (17. Ausg.)International Navigation Congress Baltimore, Md. XXe Congrès International De Navigation: = Sect. 1, Inland Navigation; 4, Subject Propulsion of Vessels by Push Towing. Brussels: General-Secretariat P.I.A.N.C, 1961.
MLA-Zitierstil (9. Ausg.)International Navigation Congress Baltimore, Md. XXe Congrès International De Navigation: = Sect. 1, Inland Navigation; 4, Subject Propulsion of Vessels by Push Towing. General-Secretariat P.I.A.N.C, 1961.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.