MANENPRO '94 (Conference) London, England), Society of Chemical Industry (Great Britain), Institution of Chemical Engineers (Great Britain). London and South-Eastern Branch, & Bond, J. (1994). MANENPRO '94 - Management of Environmental Protection. Institution of Chemical Engineers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)MANENPRO '94 (Conference) London, England), Society of Chemical Industry (Great Britain), Institution of Chemical Engineers (Great Britain). London and South-Eastern Branch, و John Bond. MANENPRO '94 - Management of Environmental Protection. Rugby: Institution of Chemical Engineers, 1994.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)MANENPRO '94 (Conference) London, England), et al. MANENPRO '94 - Management of Environmental Protection. Institution of Chemical Engineers, 1994.