Gaya APA

Johnson, W, R., Winifred, I, K. (1981). Sex education and counselling of special groups the mentally and physically ì disabled, ill, and elderly . Illinois: Illinois: Charles C Thomas; 1981.

Gaya MLA

Johnson, Warren, R., Winifred, I., Kempton,. "Sex education and counselling of special groups the mentally and physically ì disabled, ill, and elderly". Illinois: Illinois: Charles C Thomas; 1981, 1981. Text.