Mill, R., Morrison, A. The Tourism System. Englewood Cliffs, New Jersey: Prentice-Hall Int., 1992 XXVI, 506 с. 0-13-928094-4.
Mill, R., Morrison, A. The Tourism System. Englewood Cliffs, New Jersey: Prentice-Hall Int., 1992 XXVI, 506 с. 0-13-928094-4.
Mill, R., Morrison, A. (1992) The Tourism System, Englewood Cliffs, New Jersey: Prentice-Hall Int. XXVI, 506 с. 0-13-928094-4.
Mill, R., & Morrison, A. (1992). The Tourism System. An Introductory Text. Englewood Cliffs, New Jersey: Prentice-Hall Int., XXVI, 506 с.
Mill R, Morrison A. The Tourism System: An Introductory Text. Englewood Cliffs, New Jersey: Prentice-Hall Int.; 1992. p. XXVI, 506 с. ISBN: 0-13-928094-4.