TY - BOOK ID - 145557713 TI - T-groups : a survey of research AU - COOPER, C.L. AU - MANGHAM, Iain L. PY - 1971 PB - London : John Wiley, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:145557713 AB - ER -