Style de citation APA (7e éd.)

Jost, C. (2017). FIRST STEPS IN THE SAP PURCHASING PROCESSES (MM) (2nd, extended edition.). ESPRESSO TUTORIALS.

Style de citation Chicago (17e éd.)

Jost, Claudia. FIRST STEPS IN THE SAP PURCHASING PROCESSES (MM). 2nd, extended edition. [Place of publication not identified]: ESPRESSO TUTORIALS, 2017.

Style de citation MLA (8e éd.)

Jost, Claudia. FIRST STEPS IN THE SAP PURCHASING PROCESSES (MM). 2nd, extended edition. ESPRESSO TUTORIALS, 2017.