Παραπομπή APA

Lichfield, N. (1993). Conservation economics: Cost benefit analysis for the cultural built heritage : principles and practice. Sri Lanka: ICOMOS.

Παραπομπή Chicago Style

Lichfield, Nathaniel. Conservation Economics: Cost Benefit Analysis for the Cultural Built Heritage : Principles and Practice. Sri Lanka: ICOMOS, 1993.

Παραπομπή MLA

Lichfield, Nathaniel. Conservation Economics: Cost Benefit Analysis for the Cultural Built Heritage : Principles and Practice. Sri Lanka: ICOMOS, 1993.

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