The vital index in development
By: by Burchard W. De Busk...
Published: 1917
Place of publication: [Worcester
Language: eng
Number of pages: 18
Subjects: Growth
Notes: Bibliography: p. 17-18.
Thesis (PH. D.)--Clark university, 1915.
"Reprinted from the Pedagogical seminary, March, 1917, vol. XXIV."