The effect of topically applied sodium fluoride on dental caries experience /
by John W. Knutson and Wallace D. Armstrong.

APA Citation

Knutson, J. W., Armstrong, W. D. (Wallace David). (1943). The effect of topically applied sodium fluoride on dental caries experience. [Washington]: U. S. Govt. print. off..

MLA Citation

Knutson, John W., 1907-, and Wallace D. (Wallace David) Armstrong. The Effect of Topically Applied Sodium Fluoride On Dental Caries Experience. [Washington]: U. S. Govt. print. off., 1943.

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