Liquid-liquid equilibria (LLE) data of one quaternary mixture for water + methanol + methylanthranilate (MA) + toluene and two constituent ternary mixtures for the systems (water + MA + toluene) and (water + methanol + toluene) at (298.15, 313.15, and 323.15) K were measured at atmospheric pressure. The reliability of the experimental LLE data was ascertained through Othmer-Tobias and Bachman correlations. The LLE experimental data for the systems were correlated using the universal quasichemical (UNIQUAC) and nonrandom two-liquid (NRTL) models. The average root-mean-square deviations (RMSDs) of the NRTL and UNIQUAC models were 1.257 and 0.997. Both models accurately correlated the experimental tie-line data, while the correlation of the NRTL model was inferior to that of the UNIQUAC model.