APA (7th ed.) Citation
Knoch, R. E. (1969). Buying your home sewing machine ([Slightly revised Oct. 1969.). For sale by the Supt. of Docs., U.S. Govt. Print. Off..
Chicago Style (17th ed.) Citation
Knoch, Ruth E. Buying Your Home Sewing Machine. [Slightly revised Oct. 1969. Washington: For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1969.
MLA (9th ed.) Citation
Knoch, Ruth E. Buying Your Home Sewing Machine. [Slightly revised Oct. 1969. For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1969.
Warning: These citations may not always be 100% accurate.