Catalogue Persistent Identifier
http://nla.gov.au/nla.cat-vn155823
APA Citation
Emerson, Harrington. (1917). The twelve principles of efficiency. New York : Engineering Magazine
MLA Citation
Emerson, Harrington. The twelve principles of efficiency / by Harrington Emerson Engineering Magazine New York 1917
Australian/Harvard Citation
Emerson, Harrington. 1917, The twelve principles of efficiency / by Harrington Emerson Engineering Magazine New York
Wikipedia Citation
{{Citation
| title=The twelve principles of efficiency / by Harrington Emerson
| author1=Emerson, Harrington, 1853-1931
| year=1917
| publisher=Engineering Magazine
| language=English
}}








