Cita APA (7th ed.)
APS observer [APS Obs] NLMUID: 101288557.
Cita Chicago (17th ed.)
APS Observer [APS Obs] NLMUID: 101288557.
Cita MLA (9th ed.)
APS Observer [APS Obs] NLMUID: 101288557.
Atenció: Aquestes cites poden no estar 100% correctes.