31/12/1969
"Compiled by the Bureau of Standards."
At head of title: Department of commerce ...
Mode of access: Internet.
bib
http://hdl.handle.net/2027/uiug.30112106764308
http://hdl.handle.net/2027/uiug.30112106764324
http://hdl.handle.net/2027/uiug.30112106764316
http://hdl.handle.net/2027/uiug.30112106764340
http://hdl.handle.net/2027/uiug.30112106764357
http://hdl.handle.net/2027/uiug.30112106764555
http://hdl.handle.net/2027/mdp.39015086547943
http://hdl.handle.net/2027/mdp.39015086547950
http://hdl.handle.net/2027/mdp.39015086547968
http://hdl.handle.net/2027/mdp.39015086490821
http://hdl.handle.net/2027/mdp.39015086490839
http://hdl.handle.net/2027/mdp.39015086491514
http://hdl.handle.net/2027/mdp.39015086508705
http://hdl.handle.net/2027/uc1.b3037816
http://hdl.handle.net/2027/uc1.b3037817
http://hdl.handle.net/2027/uc1.b3037818
http://hdl.handle.net/2027/uc1.b3037819
http://hdl.handle.net/2027/uc1.b3037820
http://hdl.handle.net/2027/uc1.b3037821
http://hdl.handle.net/2027/uc1.b3037822
eng
Washington : U.S. Govt. Print. Off.,
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