Lua APA (7ú heag.)

Wirtz, J., & Lovelock, C. C. (2023). Services Marketing (3rd.). Pearson.

Lua i Stíl Chicago (17ú heag.)

Wirtz, Jochen, agus Christopher; Chatterjee Lovelock. Services Marketing. 3rd. Noida: Pearson, 2023.

Lua MLA (9ú heag.)

Wirtz, Jochen, agus Christopher; Chatterjee Lovelock. Services Marketing. 3rd. Pearson, 2023.

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