APA Style
Hoff,R.J and McDonald,G.I. (1980).
Improving Rust-Resistant Strains of Inland Western White Pine (USDA) .
Ogden, Utah:
USDA Forest Service.
Chicago Style
Hoff,R.J and McDonald,G.I.
Improving Rust-Resistant Strains of Inland Western White Pine (USDA).
Ogden, Utah:
USDA Forest Service,
1980.
.
MLA Style
Hoff,R.J and McDonald,G.I.
Improving Rust-Resistant Strains of Inland Western White Pine (USDA).
Ogden, Utah:
USDA Forest Service,
1980.
.
Turabian Style
Hoff,R.J and McDonald,G.I.
Improving Rust-Resistant Strains of Inland Western White Pine (USDA).
Ogden, Utah:
USDA Forest Service,
1980.
.