Cologne and Bonn, with environs;
handbook for travellers
by Karl Baedeker.

APA Citation

Karl Baedeker (Firm). (1961). Cologne and Bonn, with environs: handbook for travellers. Freiburg; New York: Macmillan.

MLA Citation

Karl Baedeker (Firm). Cologne And Bonn, With Environs: Handbook for Travellers. Freiburg; New York: Macmillan, 1961.

Warning: These citations may not always be complete (especially for serials).