Valid publications are:
Privately or commercially published books & booklets, including Convention Packs provided they are legally obtainable. English language only for the present.
Models in BOS convention packs and back issues of the British Origami Magazine may be obtained by borrowing the pack or magazine from the BOS library (members only!) and photocopying the instructions. Alternatively, contact the librarian to send you photocopies for a modest charge.
Models in British Origami Society booklets may be obtained by purchasing the booklet from the supplies officer. Out of print booklets may possibly be borrowed from the library, but check supplies first.