APA Style
Heldman, D. R., Blackstone,E.G and Smith,S.L. (1950).
Improvement Of Instruction in Typewriting (Second Edition) .
New York:
Prentice-Hall, Inc..
Chicago Style
Heldman, D. R., Blackstone,E.G and Smith,S.L.
Improvement Of Instruction in Typewriting (Second Edition).
New York:
Prentice-Hall, Inc.,
1950.
.
MLA Style
Heldman, D. R., Blackstone,E.G and Smith,S.L.
Improvement Of Instruction in Typewriting (Second Edition).
New York:
Prentice-Hall, Inc.,
1950.
.
Turabian Style
Heldman, D. R., Blackstone,E.G and Smith,S.L.
Improvement Of Instruction in Typewriting (Second Edition).
New York:
Prentice-Hall, Inc.,
1950.
.