Roemer, A. (1971). The St. Lawrence Seaway, its ports and its hinterland.
Chicago Style (17th ed.) CitationRoemer, Angelika. The St. Lawrence Seaway, Its Ports and Its Hinterland. 1971.
MLA (9th ed.) CitationRoemer, Angelika. The St. Lawrence Seaway, Its Ports and Its Hinterland. 1971.
Warning: These citations may not always be 100% accurate.