The effect of time upon variability,
by Ella Woodyard.

APA Citation

Woodyard, E. (1926). The effect of time upon variability. New York city: Teachers college, Columbia university.

MLA Citation

Woodyard, Ella, 1878-. The Effect of Time Upon Variability. New York city: Teachers college, Columbia university, 1926.

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