APA-čujuhus (7. p.)
Krafft, M., Hesse, J., Hfling, J., Peters, K., & Rinas, D. (2007). International Direct Marketing: Principles, Best Practices, Marketing Facts. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-39632-1
Chicago-čujuhus (17. p.)
Krafft, Manfred, Jrgen Hesse, Jrgen Hfling, Kay Peters, juo Diane Rinas. International Direct Marketing: Principles, Best Practices, Marketing Facts. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. https://doi.org/10.1007/978-3-540-39632-1.
MLA-čujuhus (9. p.)
Krafft, Manfred, et al. International Direct Marketing: Principles, Best Practices, Marketing Facts. Springer Berlin Heidelberg, 2007. https://doi.org/10.1007/978-3-540-39632-1.
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