Gaya APA
Seventy Years of Life and Labor. (1948).
New York:
E.P. Dutton.
Gaya Chicago
Seventy Years of Life and Labor.
.
New York:
E.P. Dutton,
1948.
.
Gaya MLA
Seventy Years of Life and Labor.
.
New York:
E.P. Dutton,
1948.
.
Gaya Turabian
Seventy Years of Life and Labor.
New York:
E.P. Dutton,
1948.
.