Borch GmbH & Frommer, H. (2017). Southwest-USA: American Southwest, Grand Canyon National Park, Las Vegas - The Strip, Greater Los Angeles, L.A. Downtown, San Francisco, San Francisco Bay Area, Phoenix, San Diego, San Diego Downtown : updated - durable - water-repellent - write-on/wipe-off surface (18th edition.). Borch GmbH.
Chicago-Zitierstil (17. Ausg.)Borch GmbH und H. Frommer. Southwest-USA: American Southwest, Grand Canyon National Park, Las Vegas - The Strip, Greater Los Angeles, L.A. Downtown, San Francisco, San Francisco Bay Area, Phoenix, San Diego, San Diego Downtown : Updated - Durable - Water-repellent - Write-on/wipe-off Surface. 18th edition. [Hauzenberg]: Borch GmbH, 2017.
MLA-Zitierstil (9. Ausg.)Borch GmbH und H. Frommer. Southwest-USA: American Southwest, Grand Canyon National Park, Las Vegas - The Strip, Greater Los Angeles, L.A. Downtown, San Francisco, San Francisco Bay Area, Phoenix, San Diego, San Diego Downtown : Updated - Durable - Water-repellent - Write-on/wipe-off Surface. 18th edition. Borch GmbH, 2017.