TY - BOOK AU - Firby, P. A., AU - Gardiner,Cyril F. TI - Surface topology T2 - Ellis horwood series in mathematics and its applications SN - 085312518x AV - QA612 F56 PY - 1982/// CY - Chichester PB - E. Horwood KW - Superficies KW - TopologĂ­a algebraica ER -