Borch GmbH & Frommer, H. (2018). Ecuador: Ecuador West, Ecuador East, Galápagos Islands, Greater Quito, Quito, Guayaquil, Cuenca ; updated - durable - water-repellent - write-on/wipe-off surface (11th edition.). Borch.
Chicago-Zitierstil (17. Ausg.)Borch GmbH und H. Frommer. Ecuador: Ecuador West, Ecuador East, Galápagos Islands, Greater Quito, Quito, Guayaquil, Cuenca ; Updated - Durable - Water-repellent - Write-on/wipe-off Surface. 11th edition. [Hauzenberg]: Borch, 2018.
MLA-Zitierstil (9. Ausg.)Borch GmbH und H. Frommer. Ecuador: Ecuador West, Ecuador East, Galápagos Islands, Greater Quito, Quito, Guayaquil, Cuenca ; Updated - Durable - Water-repellent - Write-on/wipe-off Surface. 11th edition. Borch, 2018.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.