Gaya APA
Hammock, Robert C, Owings, Ralph S. (1955).
Supervising Instruction In Secondary Schools .
New York:
McGraw-Hill Book Company, INC.
Gaya Chicago
Hammock, Robert C, Owings, Ralph S.
Supervising Instruction In Secondary Schools.
New York:
McGraw-Hill Book Company, INC,
1955.
.
Gaya MLA
Hammock, Robert C, Owings, Ralph S.
Supervising Instruction In Secondary Schools.
New York:
McGraw-Hill Book Company, INC,
1955.
.
Gaya Turabian
Hammock, Robert C, Owings, Ralph S.
Supervising Instruction In Secondary Schools.
New York:
McGraw-Hill Book Company, INC,
1955.
.