Cita APA (7th ed.)

(1971). The Stateman's yearbook: Statitstical and historical annual of the states of the world for the year 1971-1972. MacMillan.

Cita Chicago (17th ed.)

The Stateman's Yearbook: Statitstical and Historical Annual of the States of the World for the Year 1971-1972. London: MacMillan, 1971.

Cita MLA (9th ed.)

The Stateman's Yearbook: Statitstical and Historical Annual of the States of the World for the Year 1971-1972. MacMillan, 1971.