PHILLIPS, L. E. (1993). Urban Trees A Guide For Selection Maintenance And Master Planning Leonard E. Phillips. McGraw-Hill.
Chicago-viite (17. p.)PHILLIPS, Leonard E. Urban Trees A Guide For Selection Maintenance And Master Planning Leonard E. Phillips. McGraw-Hill, 1993.
MLA-viite (8. p.)PHILLIPS, Leonard E. Urban Trees A Guide For Selection Maintenance And Master Planning Leonard E. Phillips. McGraw-Hill, 1993.
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