There is no objection to going in western clothes in order to distribute my books. It is not necessary that we always wear the robes, but we should always keep sikha and teelock. However, a wig or hat may be worn as you describe. We have to take whatever is the favorable position for executing Krsna consciousness. Do not forget our principles, but sometimes we may adapt such means in order to help distribute books. Somehow or other distribute books and if you can impress people a little to chant then it does not matter about your dress.
Letter to Jagadisa, 23 July, 1973