APA-viite (7. p.)

rees, c. j. v. (1964). some remarks on tinbergen's approach of project appraisal. the institute of national planning.

Chicago-viite (17. p.)

rees, c. j. van. Some Remarks on Tinbergen's Approach of Project Appraisal. cairo: the institute of national planning, 1964.

MLA-viite (9. p.)

rees, c. j. van. Some Remarks on Tinbergen's Approach of Project Appraisal. the institute of national planning, 1964.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.