Shaeffer, R. E. (1988). Elementary structures for architects and builders. Prentice-Hall.
Chicago Style aipamenaShaeffer, R. E. Elementary Structures for Architects and Builders. Englewood Cliffs, N.J: Prentice-Hall, 1988.
MLA aipamenaShaeffer, R. E. Elementary Structures for Architects and Builders. Prentice-Hall, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.