APA-viite (7. p.)

Ulrich Larry Photography by & Lamb Susan interpretive text by. Wildflowers of the pacific northwest. Santa Barbara Companion Press.

Chicago-viite (17. p.)

Ulrich Larry Photography by ja Lamb Susan interpretive text by. Wildflowers of the Pacific Northwest. : Santa Barbara Companion Press.

MLA-viite (9. p.)

Ulrich Larry Photography by ja Lamb Susan interpretive text by. Wildflowers of the Pacific Northwest. Santa Barbara Companion Press.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.