Gaya APA
Irvin, George. (1987).
Modern cost beneftit methods: an intruction to financial, economic and social sppraisal of development projects .
London:
MacMillan.
Gaya Chicago
Irvin, George.
Modern cost beneftit methods: an intruction to financial, economic and social sppraisal of development projects.
London:
MacMillan,
1987.
Text.
Gaya MLA
Irvin, George.
Modern cost beneftit methods: an intruction to financial, economic and social sppraisal of development projects.
London:
MacMillan,
1987.
Text.
Gaya Turabian
Irvin, George.
Modern cost beneftit methods: an intruction to financial, economic and social sppraisal of development projects.
London:
MacMillan,
1987.
Print.