LENNES, N. J.
Plane trigonometry, by N. J. Lennes and A. S. Merrill; with the editorial cooperation of H. E. Slaught.
LENNES, N. J. Plane trigonometry, by N. J. Lennes and A. S. Merrill; with the editorial cooperation of H. E. Slaught. © 16Feb28; A1018839. Harriet G. Lennes (E of N. J. Lennes); 4Aug55; R154268.
Harriet G. Lennes|E of N. J. Lennes