Beckstrom, R. J. (1988). How to build an addition. Ortho Books.
Citación estilo ChicagoBeckstrom, Robert J. How to Build an Addition. San Ramon, Calif: Ortho Books, 1988.
Cita MLABeckstrom, Robert J. How to Build an Addition. Ortho Books, 1988.
Warning: These citations may not always be 100% accurate.