ISBN-13: 9781138632981 / Angielski / Miękka / 2019 / 170 str.
ISBN-13: 9781138632981 / Angielski / Miękka / 2019 / 170 str.
Originally published in 1976, the authors of six of the most widely quoted works in behavioural science related to education, at the time, here describe in detail their research work, including its origins, planning and implementation.