Cita APA (7th ed.)
Lillis, A. D. R Graph Essentials: Use R's Powerful Graphing Capabilities to Design and Create Professional-Level Graphics. Packt.
Cita Chicago (17th ed.)
Lillis, Alexander David. R Graph Essentials: Use R's Powerful Graphing Capabilities to Design and Create Professional-Level Graphics. Birmingham, Inglaterra: Packt.
Cita MLA (9th ed.)
Lillis, Alexander David. R Graph Essentials: Use R's Powerful Graphing Capabilities to Design and Create Professional-Level Graphics. Packt.
Atenció: Aquestes cites poden no estar 100% correctes.