David, J. S. (1965). Know the Manila Stock Exchange: First step to Philippine investment. s.n.
Citazione stile Chigago Style (17a edizione)David, Josefina S. Know the Manila Stock Exchange: First Step to Philippine Investment. [Manila: s.n, 1965.
Citatione MLA (9a ed.)David, Josefina S. Know the Manila Stock Exchange: First Step to Philippine Investment. s.n, 1965.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.