Cita APA (7a ed.)
Stanley Gibbons Publications Ltd. Stanley Gibbons Thematic Catalogue: Collect Fungi on Stamps (Segunda edición.).
Cita Chicago Style (17a ed.)
Stanley Gibbons Publications Ltd. Stanley Gibbons Thematic Catalogue: Collect Fungi on Stamps. Segunda edición.
Cita MLA (9a ed.)
Stanley Gibbons Publications Ltd. Stanley Gibbons Thematic Catalogue: Collect Fungi on Stamps. Segunda edición.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.