APA

Gellein O. S., Newman M. S., . (1973). Accounting for research and development expenditures. New York: American Institute of Certified Public Accountants.

Chicago

Gellein Oscar S, Newman Maurice S, . 1973. Accounting for research and development expenditures. New York: American Institute of Certified Public Accountants.

Harvard

Gellein O. S., Newman M. S., . (1973). Accounting for research and development expenditures. New York: American Institute of Certified Public Accountants.

MLA

Gellein Oscar S, Newman Maurice S, . Accounting for research and development expenditures. New York: American Institute of Certified Public Accountants. 1973.