Electric circuits and machines,

The 1941 edition has title: Electrical circuits and machines.

Comparison of milking operations in herringbone milking layouts for large herds in California /

"In cooperation with University of California Agricultural Extension Service."

Reducing voter waiting time : how to allocate voting machines to the polls.

Mode of access: Internet.

Far travelers : the exploring machines /

No longer available for sale by the Supt. of Docs., U.S. G.P.O.

Safety code for mechanical power-transmission apparatus : rules for guarding prime movers, intermediate equipment, and driven machines : approved by American Standards Association as an American standard, 1927 /

"ASA B15-1927"--Cover.