Παραπομπή APA

Olson, S. S. (1999). International environmental standards handbook. CRC.

Παραπομπή Chicago Style

Olson, Scott S. International Environmental Standards Handbook. Boca Raton: CRC, 1999.

Παραπομπή MLA

Olson, Scott S. International Environmental Standards Handbook. CRC, 1999.