Wager, L. R., & Brown, G. M. (1967). Layered igneous rocks. Freeman.
Chicago Style aipamenaWager, L R., and G M. Brown. Layered Igneous Rocks. Sanfransisco: Freeman, 1967.
MLA aipamenaWager, L R., and G M. Brown. Layered Igneous Rocks. Freeman, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.