एपीए उद्धरण

Richardson, M. (1992). Risk management of chemicals. Royal society of chemistry.

शिकागो स्टाइल उद्धरण

Richardson, Mervyn. Risk Management of Chemicals. Cambridge: Royal society of chemistry, 1992.

एमएलए उद्धरण

Richardson, Mervyn. Risk Management of Chemicals. Royal society of chemistry, 1992.