APA

Detra D. E., Cooley E. F., . (1988). A modification of the US Geological Survey one-sixth order semiquantitative spectrographic method for the analysis of geologic materials that improves limits of determination of some volatile to moderately volatile elements. Washington, DC [u.a.]: United States Gov. Print. Office.

Chicago

Detra David E, Cooley Elmo F, . 1988. A modification of the US Geological Survey one-sixth order semiquantitative spectrographic method for the analysis of geologic materials that improves limits of determination of some volatile to moderately volatile elements. Washington, DC [u.a.]: United States Gov. Print. Office.

Harvard

Detra D. E., Cooley E. F., . (1988). A modification of the US Geological Survey one-sixth order semiquantitative spectrographic method for the analysis of geologic materials that improves limits of determination of some volatile to moderately volatile elements. Washington, DC [u.a.]: United States Gov. Print. Office.

MLA

Detra David E, Cooley Elmo F, . A modification of the US Geological Survey one-sixth order semiquantitative spectrographic method for the analysis of geologic materials that improves limits of determination of some volatile to moderately volatile elements. Washington, DC [u.a.]: United States Gov. Print. Office. 1988.