APA

Blume L. J., United States, . (1990). Handbook of methods for acid deposition studies: laboratory analyses for soil chemistry. Washington: U.S. Environmental Protection Agency.

Chicago

Blume L J, United States, . 1990. Handbook of methods for acid deposition studies: laboratory analyses for soil chemistry. Washington: U.S. Environmental Protection Agency.

Harvard

Blume L. J., United States, . (1990). Handbook of methods for acid deposition studies: laboratory analyses for soil chemistry. Washington: U.S. Environmental Protection Agency.

MLA

Blume L J, United States, . Handbook of methods for acid deposition studies: laboratory analyses for soil chemistry. Washington: U.S. Environmental Protection Agency. 1990.