Report on the water system of the city of Chicago,
by John Ericson ... and Report on electrolysis, by Ray Palmer ...

APA Citation

Chicago (Ill.). City Engineer., Palmer, R., Ericson, J. Ernst. (1911). Report on the water system of the city of Chicago. [Chicago].

MLA Citation

Chicago (Ill.). City Engineer, Ray Palmer, and John Ernst Ericson. Report On the Water System of the City of Chicago. [Chicago], 1911.

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