Catalogue of 20,554 faint stars in the Cape astrographic zone
APA Citation
Royal Observatory, C. of Good Hope., Cannon, A. Jump., Jackson, J., Jones, H. Spencer (Harold Spencer). (1939). Catalogue of 20,554 faint stars in the Cape astrographic zone. London: H. M. Stationery off..
MLA Citation
Royal Observatory, Cape of Good Hope, Annie Jump Cannon, John Jackson, and H. Spencer (Harold Spencer) Jones. Catalogue of 20,554 Faint Stars In the Cape Astrographic Zone. London: H. M. Stationery off., 1939.
Warning: These citations may not always be complete (especially for serials).