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| 035 | |a 017811 | ||
| 040 | |a Sistema de Bibliotecas de la Universidad de Panamá | ||
| 041 | 1 | |a spa | |
| 082 | |a T - 631.42 - B45 | ||
| 100 | 2 | 1 | |a Bernal Vásquez, Juan Antonio |
| 245 | 1 | 0 | |a Estudio de la fertilidad de un suelo de la Barqueta Agrícola (Alanje) con especial énfasis en la disponibilidad del potasio |c / Juan Antonio Bernal Vásquez |
| 260 | |a Panamá |b : Universidad |c , 1981. | ||
| 300 | |a v, 64 |b : ilus |c ; 28cm. | ||
| 650 | 2 | 4 | |a SUELOS |
| 650 | 2 | 4 | |a POTASIO |
| 942 | |c TS |2 ddc | ||
| 999 | |c 51654 |d 51654 | ||
| 952 | |0 0 |1 0 |2 ddc |4 0 |6 T_631_420000000000000_B45 |7 0 |8 T |9 75875 |a 10 |b 10 |c 15 |d 2014-01-20 |o T 631.42 B45 |p 00209541 |r 2014-01-20 |t e.1 |w 2014-01-20 |y TS | ||
| 952 | |0 0 |1 0 |2 ddc |4 0 |6 T__631_420000000000000__B45 |7 0 |8 T |9 373320 |a 20 |b 20 |c 15 |d 2018-05-03 |o T - 631.42 - B45 |p 00232387 |r 2018-05-03 |t e.2 |w 2018-05-03 |y TS | ||