APA

Welch B. L., Briggs S. F., Young S. A. & Estados Unidos. (1994). Pine Valle Ridge source, a superior selected germplasm of black sagebrush. Washington: Intermountain Research Station.

Chicago

Welch Bruce L, Briggs Steven F, Young Stanford A and Estados Unidos. 1994. Pine Valle Ridge source, a superior selected germplasm of black sagebrush. Washington: Intermountain Research Station.

Harvard

Welch B. L., Briggs S. F., Young S. A. and Estados Unidos. (1994). Pine Valle Ridge source, a superior selected germplasm of black sagebrush. Washington: Intermountain Research Station.

MLA

Welch Bruce L, Briggs Steven F, Young Stanford A and Estados Unidos. Pine Valle Ridge source, a superior selected germplasm of black sagebrush. Washington: Intermountain Research Station. 1994.