Citace podle APA (7th ed.)
Eldring, J. (2009). Porter's (1980) generic strategies, performance and risk: An empirical investigation with German data. Diplomica Verlag.
Citace podle Chicago (17th ed.)
Eldring, Jan. Porter's (1980) Generic Strategies, Performance and Risk: An Empirical Investigation with German Data. Hamburg: Diplomica Verlag, 2009.
Citace podle MLA (9th ed.)
Eldring, Jan. Porter's (1980) Generic Strategies, Performance and Risk: An Empirical Investigation with German Data. Diplomica Verlag, 2009.
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