Gaya APA
Sample size tables for clinical studies. (1987).
:
.
Gaya Chicago
Sample size tables for clinical studies.
Second edition.
:
,
1987.
Text.
Gaya MLA
Sample size tables for clinical studies.
Second edition.
:
,
1987.
Text.
Gaya Turabian
Sample size tables for clinical studies.
:
,
1987.
Print.