APA (7th ed.) Citation

Masson, D. R. Directory of scientific research organization in the union of scientific research organization in the union of south africa. s.n.], 1955.

Chicago Style (17th ed.) Citation

Masson, D. Ryle. Directory of Scientific Research Organization in the Union of Scientific Research Organization in the Union of South Africa. [S.l.: s.n.], 1955.

MLA (9th ed.) Citation

Masson, D. Ryle. Directory of Scientific Research Organization in the Union of Scientific Research Organization in the Union of South Africa. s.n.], 1955.