APA aipamena

Williams, K. W. (1970). Arithmetic: A semiprogrammed text. Prentice-Hall.

Chicago Style aipamena

Williams, Keith W. Arithmetic: A Semiprogrammed Text. Englewood Cliffs, N.J.: Prentice-Hall, 1970.

MLA aipamena

Williams, Keith W. Arithmetic: A Semiprogrammed Text. Prentice-Hall, 1970.