Leon, Alvera de, / producer. : Beautiful Faces [Hoopla electronic resource].
2012
1
Leon, Andrew C. : Analysis of observational health care data using SAS / [edited by] Douglas E. Faries, Andrew C. Leon, Josep Maria Haro, Robert L. Obenchain. [O'Reilly electronic resource]
2010
1
Leon, Argenis, / author. : Data Processing with Optimus / Leon, Argenis. [O'Reilly electronic resource]
Leon, John Daniel, / author. : Security with Go : explore the power of Golang to secure host, web, and cloud services / John Daniel Leon. [O'Reilly electronic resource]