Ries, A. Las Veinte y dos leyes inmutables del marketing.
Chicago Style (17th ed.) CitationRies, AlTrout. Las Veinte Y Dos Leyes Inmutables Del Marketing.
MLA (8th ed.) CitationRies, AlTrout. Las Veinte Y Dos Leyes Inmutables Del Marketing.
Warning: These citations may not always be 100% accurate.