Three-drum boiler (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Three-drum boiler" in English language version.

refsWebsite

Global rank English rank

3books.google.com

3^rd place

3^rd place

2steamindex.com

low place

low place

6^th place

6^th place

1douglas-self.com

low place

low place

archive.org

Robertson, Leslie S. (1901). Water-tube boilers. p. 37.

books.google.com

Brassey, Thomas Allnutt (1896). The Naval Annual. Brassey. pp. 118–119. ISBN 1-4212-4178-1.
Cisin, Harry George (1921). Modern Marine Engineering. BiblioBazaar. pp. 78–84. ISBN 0-559-03423-7.
Brassey, Thomas Allnutt (1896). The Naval Annual. Brassey. pp. 118–119. ISBN 1-4212-4178-1.

douglas-self.com

"The Colombian Steam Motor Locomotive".

steamindex.com

"Sentinel locomotives & railcars".
[WITHDRAWAL of LMSR. Sentinel railcar No. 29913]. Loco. Rly Carr. Wagon Rev., 1940, 46, 83. in "Sentinel locomotives & railcars".