APA-čujuhus (7. p.)
Simme Douwe P. Flapper, J. A. N. Managing Closed-Loop Supply Chains. Springer.
Chicago-čujuhus (17. p.)
Simme Douwe P. Flapper, Jo A.E.E. Nunen. Managing Closed-Loop Supply Chains. Berlín, Alemania: Springer.
MLA-čujuhus (9. p.)
Simme Douwe P. Flapper, Jo A.E.E. Nunen. Managing Closed-Loop Supply Chains. Springer.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.