Citazione Stile APA (7a Edizione)

Smith, P. C. (1975). Interregional migration, lifetime and 1960-1970: Sex ratios in the streams. s.n.].

Citazione stile Chigago Style (17a edizione)

Smith, Peter Colin. Interregional Migration, Lifetime and 1960-1970: Sex Ratios in the Streams. [S.l: s.n.], 1975.

Citatione MLA (9a ed.)

Smith, Peter Colin. Interregional Migration, Lifetime and 1960-1970: Sex Ratios in the Streams. s.n.], 1975.