APA-čujuhus (7. p.)
Angrick, M., Burger, A., & Lehmann, H. Factor X: Policy, Strategies and Instruments for a Sustainable Resource Use. Springer.
Chicago-čujuhus (17. p.)
Angrick, Michael, Andreas Burger, juo Harry Lehmann. Factor X: Policy, Strategies and Instruments for a Sustainable Resource Use. Dordrecht, Holanda: Springer.
MLA-čujuhus (9. p.)
Angrick, Michael, et al. Factor X: Policy, Strategies and Instruments for a Sustainable Resource Use. Springer.
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