Some techniques and systems / ed. Lance Dobson, Tony Gear, Adam Westoby

Some techniques and systems / ed. Lance Dobson, Tony Gear, Adam Westoby . - [London] : Ward Lock Educational, cop. 1975 . - [8], 405 p. : il. 22 cm . - (Management in education . E 321 . Reader 2)
0-7062-3471-5 (Brochado)