APA-Zitierstil (7. Ausg.)

Vroblesky, D. A., & Fleck, W. B. (1991). Hydrogeologic framework of the coastal plain of Maryland, Delaware, and the District of Columbia. US Gov. Print. Off.

Chicago-Zitierstil (17. Ausg.)

Vroblesky, Don A., und William B. Fleck. Hydrogeologic Framework of the Coastal Plain of Maryland, Delaware, and the District of Columbia. Washington, DC: US Gov. Print. Off, 1991.

MLA-Zitierstil (9. Ausg.)

Vroblesky, Don A., und William B. Fleck. Hydrogeologic Framework of the Coastal Plain of Maryland, Delaware, and the District of Columbia. US Gov. Print. Off, 1991.