New frontiers of physics /
by Paul R. Heyl.
APA Citation
Heyl, R. (1930). New frontiers of physics. New York: D. Appleton and company.
MLA Citation
Heyl, Renno, 1872-. New Frontiers of Physics. New York: D. Appleton and company, 1930.
Warning: These citations may not always be complete (especially for serials).