APA citiranje

Laessig, R. E., & Urkowitz, A. G. (1982). The environmental health matrix: Information for use in planning.

Citação norma Chicago

Laessig, R E., and A G. Urkowitz. The Environmental Health Matrix: Information for Use in Planning. 1982.

MLA citiranje

Laessig, R E., and A G. Urkowitz. The Environmental Health Matrix: Information for Use in Planning. 1982.