Isobaric vapor-liquid equilibrium (VLE) were measured for the ternary system methylbutyl ketone + 1-pentanol + anisole and for constituent binaries methylbutyl ketone + anisole at the pressures (26.66, 53.33, 79.99, and 101.32) kPa and methylbutyl ketone + 1-pentanol at 101.32 kPa. We obtained boiling temperature-liquid composition (T-x) relations by using a semimicroebulliometer. The modified Wilson model with parameters that linearly depend on temperature was used to correlate the binary T-x data and to predict VLE in the ternary system.