Systematic of the units in the Africa reading room
(HB / HM 25)

overall:
AA Africa in general
AB Applied Geography, Geography
AC Pre-history, Archeology
AD History of Africa (general)
AE Ethnology
AF Cultural History
AG Politics
AH Social Sciences
AJ Religion
AK Educational System
AL Languages / African Linguistics
AM Literature(s)
AN Arts
AO Law
AP Economy
AQ Agriculture
AS Afro-America
   
regional:
B North Africa
BB Egypt
BC Libya
BD Tunisia
BE Algeria
BF Morocco
BG Sahara
BH Canary Islands
BK Mauritania
BL Western Sahara
   
C East Africa
CB Sudan
CD Ethiopia
CE Eritrea
CF Somalia, Djibouti
CG Kenya
CH Uganda
CJ Tanzania
CK Mozambique
   
D Central Africa
DC Central African Republic
DD Chad
DE Congo (Democratic Republic / Kinshasa / former Za´re)
DF Congo (Republic / Brazzaville)
DG Rwanda-Urundi
DH Burundi
DJ Rwanda
DL Central African Federation
DM Zimbabwe
DN Malawi
DO Zambia
   
E West Africa
EC Senegal
ED Gambia
EE Guinea
EF Burkina-Faso
EG Mali
EH Niger
EJ Guinea Bissau
EK Sierra Leone
EL Liberia
EM Ivory Coast
EN Ghana
EO Togo
EP Benin
ER Nigeria
ES Cameroon
ET Angola
EU Spanish-Guinea
EW Gabon
EX Sao Tome and Principe
EY Cape Verde
EZ Tristan da Cunha / St. Helena
   
F South Africa (region)
FB Botswana
FC Lesotho
FD Swaziland
FE Namibia
FF Transkei
FG Bophuthatswana
   
G South Africa (State)
H Madagascar
K Indian Ocean
L Island States
LL Reunion
LM Comoros
LN Mauritius
LO Seychelles