ASTM Subcommittee D18.21 on Ground Water Monitoring, American Society for Testing and Materials, Nielsen, D., & Johnson, A. I. (1990). Ground water and vadose zone monitoring. ASTM.
Chicago-Zitierstil (17. Ausg.)ASTM Subcommittee D18.21 on Ground Water Monitoring, American Society for Testing and Materials, David Nielsen, und A. I. Johnson. Ground Water and Vadose Zone Monitoring. Philadelphia, PA: ASTM, 1990.
MLA-Zitierstil (9. Ausg.)ASTM Subcommittee D18.21 on Ground Water Monitoring, et al. Ground Water and Vadose Zone Monitoring. ASTM, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.