TY - THES ID - 138375149 TI - The self-perpetuating nature of children's peer relationships AU - Cillessen, Antonius H.. AU - Katholieke Universiteit Nijmegen. PY - 1991 PB - Kampen Mondiss DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:138375149 AB - ER -