Sweeney. A Double Bassist's Guide to Refining Performance Practices. Indiana University Press.
Chicago-viite (17. p.)Sweeney. A Double Bassist's Guide to Refining Performance Practices. Indiana University Press.
MLA-viite (9. p.)Sweeney. A Double Bassist's Guide to Refining Performance Practices. Indiana University Press.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.