0 a letter that you send with something to explain what it is or to give more information about it -- list przewodni lub towarzyszący
I do not think it follows that there need be a covering letter.
So this figure appears in a covering letter which was apparently leaked.
As prescribed by the method, each mailing included a unique covering letter that was addressed to the recipient by name and signed personally by the researcher using blue ink.
Those nonresponders who could not be contacted by telephone because of an answering or deputizing service were sent another questionnaire by post, with another covering letter.
A questionnaire was sent to the selected practices, addressed to the practice manager, together with a covering letter and a selfaddressed envelope.
Second round questionnaires were circulated with a new covering letter and prepaid envelope.
A covering letter and an organisation questionnaire was sent to them asking if they would pass the questionnaire to the most appropriate person within their organisation.
A covering letter was sent with the questionnaires from my helper and myself explaining my research and giving instructions to the teachers.
