Research in selling and buying
Subtitle: with special references to goods sold or bought by farm people
By: by Ottar Nervik and John D. Black.
Contributors: Black, John D. 1883-1960.
Series: Harvard studies in marketing farm products
Published: 1951
Place of publication: Cambridge, MA
Number of pages: 65
Subjects: Marketing research; Chain stores -- United States
Notes: Bibliography : p. 64-65.