Most widely held works by Martha Wittels
On behavior: instinct is a Cheshire cat by Peter H Klopfer ( Book )
1 edition published in 1973 in English and held by 191 libraries worldwide
Discusses several theories concerning instinctual animal behavior, how it is influenced by external factors, and how it compares to human behavior.
A small world of play and learning by Martha Wittels ( Book )
1 edition published in 1975 in English and held by 1 library worldwide