APA
(2020). BRITISH PHARMACOPOEIA [2021] [VOL-IV]. LONDON: THE STATIONARY OFFICE.
Chicago
2020. BRITISH PHARMACOPOEIA [2021] [VOL-IV]. LONDON: THE STATIONARY OFFICE.
Harvard
(2020). BRITISH PHARMACOPOEIA [2021] [VOL-IV]. LONDON: THE STATIONARY OFFICE.
MLA
BRITISH PHARMACOPOEIA [2021] [VOL-IV]. LONDON: THE STATIONARY OFFICE. 2020.