TY  - BOOK
AU  - Shapley, Harlow,
TI  - The orbits of eighty-seven eclipsing binaries: a summary 
U1  - 523.84 
PY  - 1913///
CY  - Chicago
KW  - Double stars
N1  - Thesis (Ph.D.)- Princeton university, 1913; "Reprinted for private circulation from the Astrophysical journal, v ol. XXXVIII, no.2, September, 1913"
ER  -