Cita APA (7th ed.)
Birdie, J. S., & Birdie, G. S. (1988). Basic Course in Plumber: Theory & Practice (1st.). Dhanpat Rai & Sons.
Cita Chicago (17th ed.)
Birdie, J. S., i G. S. Birdie. Basic Course in Plumber: Theory & Practice. 1st. Delhi: Dhanpat Rai & Sons, 1988.
Cita MLA (9th ed.)
Birdie, J. S., i G. S. Birdie. Basic Course in Plumber: Theory & Practice. 1st. Dhanpat Rai & Sons, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.