History and description of the Flower Astronomical Observatory with a determination of its longitude, 1912.

MLA

Doolittle, C. L. and Eric Doolittle. History and description of the Flower Astronomical Observatory with a determination of its longitude, 1912. Lancaster, Pa., Press of the New Era Printing Co., 1916.

APA

Doolittle, C. & Doolittle, E. (1916). History and description of the Flower Astronomical Observatory with a determination of its longitude, 1912. Lancaster, Pa., Press of the New Era Printing Co..

Chicago

Doolittle, C. L. and Eric Doolittle. History and description of the Flower Astronomical Observatory with a determination of its longitude, 1912. Lancaster, Pa., Press of the New Era Printing Co., 1916.