@book
{TN_libero_mab2,
author = {
Singer, Edwin J.
AND
Ramsden, John
},
title = {
The practical approach to skills analysis
},
publisher = {McGraw-Hill},
year = {1969},
booktitle = {McGraw-Hill European series in management and marketing},
address = {
London [u.a.]
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}