EPA 540/9.

Description based on: 76-001; title from cover.

EPA-540/R.

Description based on: 92/001.

EPA-905/9.

Description based on: 75-007.

EPA-907/9.

Description based on: 74-001.

EPA 908-R.

Description based on: 94-008 (Dec. 1994); title from cover.

EPA-430/9.

Description based on: 73-006 (July 1973).

EPA 550/9.

Description based on: 74-001.

EPA-600/K.

Description based on: 92/006; title from cover.

EPA GAD.

Description based on: 2-77-010; title from cover.

EPA-R5.

Description based on: 72-001.

Wetlands of Rhode Island /

Mode of access: Internet.

Proceedings of the International Symposium on Ecological Aspects of Tree-Ring Analysis, August 17-21, 1986, Marymount College, Tarrytown, New York /

Mode of access: Internet.

EPA-440/9.

Description based on: 73-001; title from cover.

EPA 904/9.

Description based on: 76-014; title from cover.

EPA-670/4.

Description based on: 73-001.