A plan for the endowment of astronomical research /
by Edward C. Pickering.

APA Citation

Pickering, E. C. (Edward Charles)., Astronomical Observatory of Harvard College. (190304). A plan for the endowment of astronomical research. Cambridge, Mass.: Astronomical Observatory of Harvard College.

MLA Citation

Pickering, Edward C. (Edward Charles), 1846-1919, and Astronomical Observatory of Harvard College. A Plan for the Endowment of Astronomical Research. Cambridge, Mass.: Astronomical Observatory of Harvard College, 190304.

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