American Society for Public Administration, Pennsylvania Economy League, & Monat, W. R. (1961). Public administration in era of change: Digest of the 1961 National Conference of the American Society for Public Administration, April 5-8, 1961, Philadelphia, Pennsylvania. Pennsylvania Economy Leage.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিAmerican Society for Public Administration, Pennsylvania Economy League, এবং William Robert Monat. Public Administration in Era of Change: Digest of the 1961 National Conference of the American Society for Public Administration, April 5-8, 1961, Philadelphia, Pennsylvania. Philadelphia: Pennsylvania Economy Leage, 1961.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিAmerican Society for Public Administration, et al. Public Administration in Era of Change: Digest of the 1961 National Conference of the American Society for Public Administration, April 5-8, 1961, Philadelphia, Pennsylvania. Pennsylvania Economy Leage, 1961.