@book{Kegan,1994,
author = {Kegan, R.},
title = {In over our heads: The mental demands of modern life},
year = {1994},
publisher = {Harvard University Press},
language = {English},
url = {books.google.com/books?id=qQ6YlMKfyQ4C&lpg=PA1&ots=w8vLD7pasR&dq=%22in%20over%20our%20heads%3A%20the%20mental%20demands%20of%20modern%20life%22&lr&pg=PA1#v=onepage&q=%22in%20over%20our%20heads:%20the%20mental%20demands%20of%20modern%20life%22&f=false}
}