APA Citation

Estados Unidos. Geological Survey, & Estados Unidos. Geological Survey. (1975). States of Maryland and Delaware: Base map. Reston, Va.: Geological Survey.

Chicago Style Citation

Estados Unidos. Geological Survey, and Estados Unidos. Geological Survey. States of Maryland and Delaware: Base Map. Reston, Va.: Geological Survey, 1975.

MLA Citation

Estados Unidos. Geological Survey, and Estados Unidos. Geological Survey. States of Maryland and Delaware: Base Map. Reston, Va.: Geological Survey, 1975.

Warning: These citations may not always be 100% accurate.