Gaskell, P. (1972). A New introduction to bibliography. Clarendon Pr.
Citación estilo ChicagoGaskell, Philip. A New Introduction to Bibliography. Oxford: Clarendon Pr, 1972.
Cita MLAGaskell, Philip. A New Introduction to Bibliography. Clarendon Pr, 1972.
Warning: These citations may not always be 100% accurate.