APA-čujuhus (7. p.)

Horn, K. (1967). Long-term Planning. The Institute of National Planning.

Chicago-čujuhus (17. p.)

Horn, Karl-Heinz. Long-term Planning. Cairo: The Institute of National Planning, 1967.

MLA-čujuhus (9. p.)

Horn, Karl-Heinz. Long-term Planning. The Institute of National Planning, 1967.

Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.