Schumacher, C. (2008). Closer and closer: Introducing real analysis. Jones and Bartlett.
Citazione stile Chigago Style (17a edizione)Schumacher, Carol. Closer and Closer: Introducing Real Analysis. Sudbury, Mass: Jones and Bartlett, 2008.
Citatione MLA (9a ed.)Schumacher, Carol. Closer and Closer: Introducing Real Analysis. Jones and Bartlett, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.